diff --git a/test/performance/config/performance-reporter.ts b/test/performance/config/performance-reporter.ts
index 7b1f171230c59e..6f9229be866a03 100644
--- a/test/performance/config/performance-reporter.ts
+++ b/test/performance/config/performance-reporter.ts
@@ -32,6 +32,7 @@ export interface WPRawPerformanceResults {
 	inserterOpen: number[];
 	inserterSearch: number[];
 	inserterHover: number[];
+	loadPatterns: number[];
 	listViewOpen: number[];
 	navigate: number[];
 }
@@ -65,6 +66,7 @@ export interface WPPerformanceResults {
 	inserterHover?: number;
 	minInserterHover?: number;
 	maxInserterHover?: number;
+	loadPatterns?: number;
 	listViewOpen?: number;
 	minListViewOpen?: number;
 	maxListViewOpen?: number;
@@ -110,6 +112,7 @@ export function curateResults(
 		inserterHover: average( results.inserterHover ),
 		minInserterHover: minimum( results.inserterHover ),
 		maxInserterHover: maximum( results.inserterHover ),
+		loadPatterns: average( results.loadPatterns ),
 		listViewOpen: average( results.listViewOpen ),
 		minListViewOpen: minimum( results.listViewOpen ),
 		maxListViewOpen: maximum( results.listViewOpen ),
diff --git a/test/performance/fixtures/perf-utils.ts b/test/performance/fixtures/perf-utils.ts
index d17eec2c935b1b..83213a59520dd5 100644
--- a/test/performance/fixtures/perf-utils.ts
+++ b/test/performance/fixtures/perf-utils.ts
@@ -30,13 +30,14 @@ export class PerfUtils {
 	 * Returns the locator for the editor canvas element. This supports both the
 	 * legacy and the iframed canvas.
 	 *
+	 * @param canvasLocator
 	 * @return Locator for the editor canvas element.
 	 */
-	async getCanvas() {
-		const canvasLocator = this.page.locator(
+	async getCanvas(
+		canvasLocator = this.page.locator(
 			'.wp-block-post-content, iframe[name=editor-canvas]'
-		);
-
+		)
+	) {
 		const isFramed = await canvasLocator.evaluate(
 			( node ) => node.tagName === 'IFRAME'
 		);
diff --git a/test/performance/specs/post-editor.spec.js b/test/performance/specs/post-editor.spec.js
index cf2610baa1f9e7..105a4bd9a80ca0 100644
--- a/test/performance/specs/post-editor.spec.js
+++ b/test/performance/specs/post-editor.spec.js
@@ -29,6 +29,7 @@ const results = {
 	inserterOpen: [],
 	inserterHover: [],
 	inserterSearch: [],
+	loadPatterns: [],
 };
 
 test.describe( 'Post Editor Performance', () => {
@@ -484,6 +485,178 @@ test.describe( 'Post Editor Performance', () => {
 			}
 		} );
 	} );
+
+	test.describe( 'Loading Patterns', () => {
+		test( 'Run the test', async ( { page, admin, perfUtils } ) => {
+			await admin.createNewPost();
+			await perfUtils.disableAutosave();
+			const globalInserterToggle = page.getByRole( 'button', {
+				name: 'Toggle block inserter',
+			} );
+
+			const testPatterns = [
+				{
+					name: 'core/query-standard-posts',
+					title: 'Standard',
+					content:
+						'<!-- wp:query {"query":{"perPage":3,"pages":0,"offset":0,"postType":"post","order":"desc","orderBy":"date","author":"","search":"","exclude":[],"sticky":"","inherit":false}} -->\n\t\t\t\t\t<div class="wp-block-query">\n\t\t\t\t\t<!-- wp:post-template -->\n\t\t\t\t\t<!-- wp:post-title {"isLink":true} /-->\n\t\t\t\t\t<!-- wp:post-featured-image {"isLink":true,"align":"wide"} /-->\n\t\t\t\t\t<!-- wp:post-excerpt /-->\n\t\t\t\t\t<!-- wp:separator -->\n\t\t\t\t\t<hr class="wp-block-separator"/>\n\t\t\t\t\t<!-- /wp:separator -->\n\t\t\t\t\t<!-- wp:post-date /-->\n\t\t\t\t\t<!-- /wp:post-template -->\n\t\t\t\t\t</div>\n\t\t\t\t\t<!-- /wp:query -->',
+					categories: [ 'test' ],
+					blockTypes: [ 'core/query' ],
+					source: 'core',
+				},
+				{
+					name: 'core/query-medium-posts',
+					title: 'Image at left',
+					content:
+						'<!-- wp:query {"query":{"perPage":3,"pages":0,"offset":0,"postType":"post","order":"desc","orderBy":"date","author":"","search":"","exclude":[],"sticky":"","inherit":false}} -->\n\t\t\t\t\t<div class="wp-block-query">\n\t\t\t\t\t<!-- wp:post-template -->\n\t\t\t\t\t<!-- wp:columns {"align":"wide"} -->\n\t\t\t\t\t<div class="wp-block-columns alignwide"><!-- wp:column {"width":"66.66%"} -->\n\t\t\t\t\t<div class="wp-block-column" style="flex-basis:66.66%"><!-- wp:post-featured-image {"isLink":true} /--></div>\n\t\t\t\t\t<!-- /wp:column -->\n\t\t\t\t\t<!-- wp:column {"width":"33.33%"} -->\n\t\t\t\t\t<div class="wp-block-column" style="flex-basis:33.33%"><!-- wp:post-title {"isLink":true} /-->\n\t\t\t\t\t<!-- wp:post-excerpt /--></div>\n\t\t\t\t\t<!-- /wp:column --></div>\n\t\t\t\t\t<!-- /wp:columns -->\n\t\t\t\t\t<!-- /wp:post-template -->\n\t\t\t\t\t</div>\n\t\t\t\t\t<!-- /wp:query -->',
+					categories: [ 'test' ],
+					blockTypes: [ 'core/query' ],
+					source: 'core',
+				},
+				{
+					name: 'core/query-small-posts',
+					title: 'Small image and title',
+					content:
+						'<!-- wp:query {"query":{"perPage":3,"pages":0,"offset":0,"postType":"post","order":"desc","orderBy":"date","author":"","search":"","exclude":[],"sticky":"","inherit":false}} -->\n\t\t\t\t\t<div class="wp-block-query">\n\t\t\t\t\t<!-- wp:post-template -->\n\t\t\t\t\t<!-- wp:columns {"verticalAlignment":"center"} -->\n\t\t\t\t\t<div class="wp-block-columns are-vertically-aligned-center"><!-- wp:column {"verticalAlignment":"center","width":"25%"} -->\n\t\t\t\t\t<div class="wp-block-column is-vertically-aligned-center" style="flex-basis:25%"><!-- wp:post-featured-image {"isLink":true} /--></div>\n\t\t\t\t\t<!-- /wp:column -->\n\t\t\t\t\t<!-- wp:column {"verticalAlignment":"center","width":"75%"} -->\n\t\t\t\t\t<div class="wp-block-column is-vertically-aligned-center" style="flex-basis:75%"><!-- wp:post-title {"isLink":true} /--></div>\n\t\t\t\t\t<!-- /wp:column --></div>\n\t\t\t\t\t<!-- /wp:columns -->\n\t\t\t\t\t<!-- /wp:post-template -->\n\t\t\t\t\t</div>\n\t\t\t\t\t<!-- /wp:query -->',
+					categories: [ 'test' ],
+					blockTypes: [ 'core/query' ],
+					source: 'core',
+				},
+				{
+					name: 'core/query-grid-posts',
+					title: 'Grid',
+					content:
+						'<!-- wp:query {"query":{"perPage":6,"pages":0,"offset":0,"postType":"post","order":"desc","orderBy":"date","author":"","search":"","exclude":[],"sticky":"exclude","inherit":false},"displayLayout":{"type":"flex","columns":3}} -->\n\t\t\t\t\t<div class="wp-block-query">\n\t\t\t\t\t<!-- wp:post-template -->\n\t\t\t\t\t<!-- wp:group {"style":{"spacing":{"padding":{"top":"30px","right":"30px","bottom":"30px","left":"30px"}}},"layout":{"inherit":false}} -->\n\t\t\t\t\t<div class="wp-block-group" style="padding-top:30px;padding-right:30px;padding-bottom:30px;padding-left:30px"><!-- wp:post-title {"isLink":true} /-->\n\t\t\t\t\t<!-- wp:post-excerpt /-->\n\t\t\t\t\t<!-- wp:post-date /--></div>\n\t\t\t\t\t<!-- /wp:group -->\n\t\t\t\t\t<!-- /wp:post-template -->\n\t\t\t\t\t</div>\n\t\t\t\t\t<!-- /wp:query -->',
+					categories: [ 'test' ],
+					blockTypes: [ 'core/query' ],
+					source: 'core',
+				},
+				{
+					name: 'core/query-large-title-posts',
+					title: 'Large title',
+					content:
+						'<!-- wp:group {"align":"full","style":{"spacing":{"padding":{"top":"100px","right":"100px","bottom":"100px","left":"100px"}},"color":{"text":"#ffffff","background":"#000000"}}} -->\n\t\t\t\t\t<div class="wp-block-group alignfull has-text-color has-background" style="background-color:#000000;color:#ffffff;padding-top:100px;padding-right:100px;padding-bottom:100px;padding-left:100px"><!-- wp:query {"query":{"perPage":3,"pages":0,"offset":0,"postType":"post","order":"desc","orderBy":"date","author":"","search":"","exclude":[],"sticky":"","inherit":false}} -->\n\t\t\t\t\t<div class="wp-block-query"><!-- wp:post-template -->\n\t\t\t\t\t<!-- wp:separator {"customColor":"#ffffff","align":"wide","className":"is-style-wide"} -->\n\t\t\t\t\t<hr class="wp-block-separator alignwide has-text-color has-background is-style-wide" style="background-color:#ffffff;color:#ffffff"/>\n\t\t\t\t\t<!-- /wp:separator -->\n\n\t\t\t\t\t<!-- wp:columns {"verticalAlignment":"center","align":"wide"} -->\n\t\t\t\t\t<div class="wp-block-columns alignwide are-vertically-aligned-center"><!-- wp:column {"verticalAlignment":"center","width":"20%"} -->\n\t\t\t\t\t<div class="wp-block-column is-vertically-aligned-center" style="flex-basis:20%"><!-- wp:post-date {"style":{"color":{"text":"#ffffff"}},"fontSize":"extra-small"} /--></div>\n\t\t\t\t\t<!-- /wp:column -->\n\n\t\t\t\t\t<!-- wp:column {"verticalAlignment":"center","width":"80%"} -->\n\t\t\t\t\t<div class="wp-block-column is-vertically-aligned-center" style="flex-basis:80%"><!-- wp:post-title {"isLink":true,"style":{"typography":{"fontSize":"72px","lineHeight":"1.1"},"color":{"text":"#ffffff","link":"#ffffff"}}} /--></div>\n\t\t\t\t\t<!-- /wp:column --></div>\n\t\t\t\t\t<!-- /wp:columns -->\n\t\t\t\t\t<!-- /wp:post-template --></div>\n\t\t\t\t\t<!-- /wp:query --></div>\n\t\t\t\t\t<!-- /wp:group -->',
+					categories: [ 'test' ],
+					blockTypes: [ 'core/query' ],
+					source: 'core',
+				},
+				{
+					name: 'core/query-offset-posts',
+					title: 'Offset',
+					content:
+						'<!-- wp:group {"style":{"spacing":{"padding":{"top":"30px","right":"30px","bottom":"30px","left":"30px"}}},"layout":{"inherit":false}} -->\n\t\t\t\t\t<div class="wp-block-group" style="padding-top:30px;padding-right:30px;padding-bottom:30px;padding-left:30px"><!-- wp:columns -->\n\t\t\t\t\t<div class="wp-block-columns"><!-- wp:column {"width":"50%"} -->\n\t\t\t\t\t<div class="wp-block-column" style="flex-basis:50%"><!-- wp:query {"query":{"perPage":2,"pages":0,"offset":0,"postType":"post","order":"desc","orderBy":"date","author":"","search":"","exclude":[],"sticky":"exclude","inherit":false},"displayLayout":{"type":"list"}} -->\n\t\t\t\t\t<div class="wp-block-query"><!-- wp:post-template -->\n\t\t\t\t\t<!-- wp:post-featured-image /-->\n\t\t\t\t\t<!-- wp:post-title /-->\n\t\t\t\t\t<!-- wp:post-date /-->\n\t\t\t\t\t<!-- wp:spacer {"height":200} -->\n\t\t\t\t\t<div style="height:200px" aria-hidden="true" class="wp-block-spacer"></div>\n\t\t\t\t\t<!-- /wp:spacer -->\n\t\t\t\t\t<!-- /wp:post-template --></div>\n\t\t\t\t\t<!-- /wp:query --></div>\n\t\t\t\t\t<!-- /wp:column -->\n\t\t\t\t\t<!-- wp:column {"width":"50%"} -->\n\t\t\t\t\t<div class="wp-block-column" style="flex-basis:50%"><!-- wp:query {"query":{"perPage":2,"pages":0,"offset":2,"postType":"post","order":"desc","orderBy":"date","author":"","search":"","exclude":[],"sticky":"exclude","inherit":false},"displayLayout":{"type":"list"}} -->\n\t\t\t\t\t<div class="wp-block-query"><!-- wp:post-template -->\n\t\t\t\t\t<!-- wp:spacer {"height":200} -->\n\t\t\t\t\t<div style="height:200px" aria-hidden="true" class="wp-block-spacer"></div>\n\t\t\t\t\t<!-- /wp:spacer -->\n\t\t\t\t\t<!-- wp:post-featured-image /-->\n\t\t\t\t\t<!-- wp:post-title /-->\n\t\t\t\t\t<!-- wp:post-date /-->\n\t\t\t\t\t<!-- /wp:post-template --></div>\n\t\t\t\t\t<!-- /wp:query --></div>\n\t\t\t\t\t<!-- /wp:column --></div>\n\t\t\t\t\t<!-- /wp:columns --></div>\n\t\t\t\t\t<!-- /wp:group -->',
+					categories: [ 'test' ],
+					blockTypes: [ 'core/query' ],
+					source: 'core',
+				},
+				{
+					name: 'core/social-links-shared-background-color',
+					title: 'Social links with a shared background color',
+					content:
+						'<!-- wp:social-links {"customIconColor":"#ffffff","iconColorValue":"#ffffff","customIconBackgroundColor":"#3962e3","iconBackgroundColorValue":"#3962e3","className":"has-icon-color"} -->\n\t\t\t\t\t\t<ul class="wp-block-social-links has-icon-color has-icon-background-color"><!-- wp:social-link {"url":"https://wordpress.org","service":"wordpress"} /-->\n\t\t\t\t\t\t<!-- wp:social-link {"url":"#","service":"chain"} /-->\n\t\t\t\t\t\t<!-- wp:social-link {"url":"#","service":"mail"} /--></ul>\n\t\t\t\t\t\t<!-- /wp:social-links -->',
+					viewportWidth: 500,
+					categories: [ 'test' ],
+					blockTypes: [ 'core/social-links' ],
+					source: 'core',
+				},
+				{
+					name: 'core/query-large-title-posts-2',
+					title: 'Large title 2',
+					content:
+						'<!-- wp:group {"align":"full","style":{"spacing":{"padding":{"top":"100px","right":"100px","bottom":"100px","left":"100px"}},"color":{"text":"#ffffff","background":"#000000"}}} -->\n\t\t\t\t\t<div class="wp-block-group alignfull has-text-color has-background" style="background-color:#000000;color:#ffffff;padding-top:100px;padding-right:100px;padding-bottom:100px;padding-left:100px"><!-- wp:query {"query":{"perPage":3,"pages":0,"offset":0,"postType":"post","order":"desc","orderBy":"date","author":"","search":"","exclude":[],"sticky":"","inherit":false}} -->\n\t\t\t\t\t<div class="wp-block-query"><!-- wp:post-template -->\n\t\t\t\t\t<!-- wp:separator {"customColor":"#ffffff","align":"wide","className":"is-style-wide"} -->\n\t\t\t\t\t<hr class="wp-block-separator alignwide has-text-color has-background is-style-wide" style="background-color:#ffffff;color:#ffffff"/>\n\t\t\t\t\t<!-- /wp:separator -->\n\n\t\t\t\t\t<!-- wp:columns {"verticalAlignment":"center","align":"wide"} -->\n\t\t\t\t\t<div class="wp-block-columns alignwide are-vertically-aligned-center"><!-- wp:column {"verticalAlignment":"center","width":"20%"} -->\n\t\t\t\t\t<div class="wp-block-column is-vertically-aligned-center" style="flex-basis:20%"><!-- wp:post-date {"style":{"color":{"text":"#ffffff"}},"fontSize":"extra-small"} /--></div>\n\t\t\t\t\t<!-- /wp:column -->\n\n\t\t\t\t\t<!-- wp:column {"verticalAlignment":"center","width":"80%"} -->\n\t\t\t\t\t<div class="wp-block-column is-vertically-aligned-center" style="flex-basis:80%"><!-- wp:post-title {"isLink":true,"style":{"typography":{"fontSize":"72px","lineHeight":"1.1"},"color":{"text":"#ffffff","link":"#ffffff"}}} /--></div>\n\t\t\t\t\t<!-- /wp:column --></div>\n\t\t\t\t\t<!-- /wp:columns -->\n\t\t\t\t\t<!-- /wp:post-template --></div>\n\t\t\t\t\t<!-- /wp:query --></div>\n\t\t\t\t\t<!-- /wp:group -->',
+					categories: [ 'test' ],
+					blockTypes: [ 'core/query' ],
+					source: 'core',
+				},
+				{
+					name: 'core/query-offset-posts-2',
+					title: 'Offset 2',
+					content:
+						'<!-- wp:group {"style":{"spacing":{"padding":{"top":"30px","right":"30px","bottom":"30px","left":"30px"}}},"layout":{"inherit":false}} -->\n\t\t\t\t\t<div class="wp-block-group" style="padding-top:30px;padding-right:30px;padding-bottom:30px;padding-left:30px"><!-- wp:columns -->\n\t\t\t\t\t<div class="wp-block-columns"><!-- wp:column {"width":"50%"} -->\n\t\t\t\t\t<div class="wp-block-column" style="flex-basis:50%"><!-- wp:query {"query":{"perPage":2,"pages":0,"offset":0,"postType":"post","order":"desc","orderBy":"date","author":"","search":"","exclude":[],"sticky":"exclude","inherit":false},"displayLayout":{"type":"list"}} -->\n\t\t\t\t\t<div class="wp-block-query"><!-- wp:post-template -->\n\t\t\t\t\t<!-- wp:post-featured-image /-->\n\t\t\t\t\t<!-- wp:post-title /-->\n\t\t\t\t\t<!-- wp:post-date /-->\n\t\t\t\t\t<!-- wp:spacer {"height":200} -->\n\t\t\t\t\t<div style="height:200px" aria-hidden="true" class="wp-block-spacer"></div>\n\t\t\t\t\t<!-- /wp:spacer -->\n\t\t\t\t\t<!-- /wp:post-template --></div>\n\t\t\t\t\t<!-- /wp:query --></div>\n\t\t\t\t\t<!-- /wp:column -->\n\t\t\t\t\t<!-- wp:column {"width":"50%"} -->\n\t\t\t\t\t<div class="wp-block-column" style="flex-basis:50%"><!-- wp:query {"query":{"perPage":2,"pages":0,"offset":2,"postType":"post","order":"desc","orderBy":"date","author":"","search":"","exclude":[],"sticky":"exclude","inherit":false},"displayLayout":{"type":"list"}} -->\n\t\t\t\t\t<div class="wp-block-query"><!-- wp:post-template -->\n\t\t\t\t\t<!-- wp:spacer {"height":200} -->\n\t\t\t\t\t<div style="height:200px" aria-hidden="true" class="wp-block-spacer"></div>\n\t\t\t\t\t<!-- /wp:spacer -->\n\t\t\t\t\t<!-- wp:post-featured-image /-->\n\t\t\t\t\t<!-- wp:post-title /-->\n\t\t\t\t\t<!-- wp:post-date /-->\n\t\t\t\t\t<!-- /wp:post-template --></div>\n\t\t\t\t\t<!-- /wp:query --></div>\n\t\t\t\t\t<!-- /wp:column --></div>\n\t\t\t\t\t<!-- /wp:columns --></div>\n\t\t\t\t\t<!-- /wp:group -->',
+					categories: [ 'test' ],
+					blockTypes: [ 'core/query' ],
+					source: 'core',
+				},
+				{
+					name: 'core/social-links-shared-background-color-2',
+					title: 'Social links with a shared background color 2',
+					content:
+						'<!-- wp:social-links {"customIconColor":"#ffffff","iconColorValue":"#ffffff","customIconBackgroundColor":"#3962e3","iconBackgroundColorValue":"#3962e3","className":"has-icon-color"} -->\n\t\t\t\t\t\t<ul class="wp-block-social-links has-icon-color has-icon-background-color"><!-- wp:social-link {"url":"https://wordpress.org","service":"wordpress"} /-->\n\t\t\t\t\t\t<!-- wp:social-link {"url":"#","service":"chain"} /-->\n\t\t\t\t\t\t<!-- wp:social-link {"url":"#","service":"mail"} /--></ul>\n\t\t\t\t\t\t<!-- /wp:social-links -->',
+					viewportWidth: 500,
+					categories: [ 'test' ],
+					blockTypes: [ 'core/social-links' ],
+					source: 'core',
+				},
+			];
+
+			await page.evaluate( ( _testPatterns ) => {
+				const settings = window.wp.data
+					.select( 'core/editor' )
+					.getEditorSettings();
+				window.wp.data.dispatch( 'core/editor' ).updateEditorSettings( {
+					...settings,
+					__experimentalAdditionalBlockPatternCategories: [
+						...settings.__experimentalAdditionalBlockPatternCategories,
+						{ name: 'test', label: 'Test' },
+					],
+					__experimentalAdditionalBlockPatterns: [
+						...settings.__experimentalAdditionalBlockPatterns,
+						..._testPatterns,
+					],
+				} );
+			}, testPatterns );
+
+			const samples = 10;
+			const throwaway = 1;
+			const iterations = samples + throwaway;
+			for ( let i = 1; i <= iterations; i++ ) {
+				// Wait for the browser to be idle before starting the monitoring.
+				// eslint-disable-next-line no-restricted-syntax
+				await page.waitForTimeout( BROWSER_IDLE_WAIT );
+
+				await globalInserterToggle.click();
+				await perfUtils.expectExpandedState(
+					globalInserterToggle,
+					'true'
+				);
+				await page.getByRole( 'tab', { name: 'Patterns' } ).click();
+
+				const startTime = performance.now();
+
+				await page.getByRole( 'button', { name: 'Test' } ).click();
+
+				await Promise.all(
+					testPatterns.map( async ( pattern ) => {
+						const canvas = await perfUtils.getCanvas(
+							page
+								.getByRole( 'option', {
+									name: pattern.title,
+									exact: true,
+								} )
+								.getByTitle( 'Editor canvas' )
+						);
+
+						// Wait for the first block.
+						await canvas.locator( '.wp-block' ).first().waitFor();
+					} )
+				);
+
+				const endTime = performance.now();
+
+				// Save the results.
+				if ( i > throwaway ) {
+					results.loadPatterns.push( endTime - startTime );
+				}
+
+				// Close Inserter.
+				await globalInserterToggle.click();
+				await perfUtils.expectExpandedState(
+					globalInserterToggle,
+					'false'
+				);
+			}
+		} );
+	} );
 } );
 
 /* eslint-enable playwright/no-conditional-in-test, playwright/expect-expect */