diff --git a/mobile_verifier/migrations/15_speedtests_one_to_one.sql b/mobile_verifier/migrations/15_speedtests_one_to_one.sql
index f8fa0187d..21e7e0e51 100644
--- a/mobile_verifier/migrations/15_speedtests_one_to_one.sql
+++ b/mobile_verifier/migrations/15_speedtests_one_to_one.sql
@@ -6,10 +6,13 @@ CREATE TABLE speedtests_migration (
        latency integer,
        timestamp timestamptz NOT NULL
 );
+CREATE INDEX idx_speedtests_pubkey on speedtests_migration (pubkey);
 
-insert into speedtests_migration (pubkey, upload_speed, download_speed, latency, timestamp)
-select id, (st).upload_speed, (st).download_speed, (st).latency, (st).timestamp
-from (select id, unnest(speedtests) as st from speedtests) as tmp;
+INSERT INTO speedtests_migration (pubkey, upload_speed, download_speed, latency, timestamp)
+SELECT id, (st).upload_speed, (st).download_speed, (st).latency, (st).timestamp
+FROM (select id, unnest(speedtests) as st from speedtests) as tmp;
 
 ALTER TABLE speedtests RENAME TO speedtests_old;
 ALTER TABLE speedtests_migration RENAME TO speedtests;
+
+
diff --git a/mobile_verifier/src/cli/reward_from_db.rs b/mobile_verifier/src/cli/reward_from_db.rs
index 85e8d5cce..d88cbcb27 100644
--- a/mobile_verifier/src/cli/reward_from_db.rs
+++ b/mobile_verifier/src/cli/reward_from_db.rs
@@ -39,8 +39,9 @@ impl Cmd {
             .await?;
 
         let heartbeats = HeartbeatReward::validated(&pool, &epoch);
-        let averages = SpeedtestAverages::aggregate_epoch_averages(epoch.end, &pool).await?;
-        let reward_shares = PocShares::aggregate(heartbeats, &averages).await?;
+        let speedtest_averages =
+            SpeedtestAverages::aggregate_epoch_averages(epoch.end, &pool).await?;
+        let reward_shares = PocShares::aggregate(heartbeats, &speedtest_averages).await?;
 
         let mut total_rewards = 0_u64;
         let mut owner_rewards = HashMap::<_, u64>::new();
@@ -62,7 +63,7 @@ impl Cmd {
         }
         let rewards: Vec<_> = owner_rewards.into_iter().collect();
         let mut multiplier_count = HashMap::<_, usize>::new();
-        let speedtest_multipliers: Vec<_> = averages
+        let speedtest_multipliers: Vec<_> = speedtest_averages
             .averages
             .into_iter()
             .map(|(pub_key, average)| {
diff --git a/mobile_verifier/src/reward_shares.rs b/mobile_verifier/src/reward_shares.rs
index 96d2ed8d7..f5cc91e61 100644
--- a/mobile_verifier/src/reward_shares.rs
+++ b/mobile_verifier/src/reward_shares.rs
@@ -218,7 +218,7 @@ pub struct PocShares {
 }
 
 impl PocShares {
-    pub async fn aggregate<'a>(
+    pub async fn aggregate(
         heartbeats: impl Stream<Item = Result<HeartbeatReward, sqlx::Error>>,
         speedtest_averages: &SpeedtestAverages,
     ) -> Result<Self, sqlx::Error> {
diff --git a/mobile_verifier/src/speedtests.rs b/mobile_verifier/src/speedtests.rs
index 402aa23a2..7fcf5ed5d 100644
--- a/mobile_verifier/src/speedtests.rs
+++ b/mobile_verifier/src/speedtests.rs
@@ -174,7 +174,7 @@ pub async fn aggregate_epoch_speedtests<'a>(
     exec: impl sqlx::PgExecutor<'a> + Copy + 'a,
 ) -> Result<EpochSpeedTests, sqlx::Error> {
     let mut speedtests = EpochSpeedTests::new();
-    // pull the last N most recent speedtests up until the epoch end for each pubkey
+    // pull the last N most recent speedtests from prior to the epoch end for each pubkey
     let mut rows = sqlx::query_as::<_, Speedtest>(
         "select * from (
             SELECT distinct(pubkey), upload_speed, download_speed, latency, timestamp, row_number()
@@ -185,7 +185,7 @@ pub async fn aggregate_epoch_speedtests<'a>(
     .bind(epoch_end)
     .bind(SPEEDTEST_AVG_MAX_DATA_POINTS as i64)
     .fetch(exec);
-    // iterate over the returned rows, collate the speedtest based on pubkey
+    // collate the returned speedtests based on pubkey
     while let Some(speedtest) = rows.try_next().await? {
         speedtests
             .entry(speedtest.pubkey.clone())
diff --git a/mobile_verifier/src/speedtests_average.rs b/mobile_verifier/src/speedtests_average.rs
index 1d2592318..2df9d8d08 100644
--- a/mobile_verifier/src/speedtests_average.rs
+++ b/mobile_verifier/src/speedtests_average.rs
@@ -133,6 +133,7 @@ impl SpeedtestAverage {
     }
 
     #[allow(dead_code)]
+    // function used by tests only
     pub fn tier(&self) -> SpeedtestTier {
         calculate_tier(
             self.window_size,