Make the runners become active faster

[fettimarius]

Is there a way to speedup the provision and register process of the runners?
In my context, I am using a custom AMI and usually when I try the ephemeral runners, usually it can take up to 3 minutes to create the EC2 and register the runner and the job to start
Now I am using a multi-runner approach, and I set the scale-down Lambda to check every 3 hours if any runners are in idle mode, usually it can take up to 4 minutes for the runners to become active with this approach, I tried with different instance types
Is there a way to make this process faster? Maybe I'm doing something wrong here.

Thank you so much,

[crohr]

In the first approach, how big is your custom AMI? It can take a long time for EC2 to boot your AMI if a lot of blocks have to be fetched from the underlying S3 storage.