We use the Amsty Plug-in for our 2.4.2 Shop.
So far its speeding up several things and with a Cloudflare account we get about 35 points in mobile speed on all page.
I know how to defer JS to bottom and how to shift JS into the header in the settings.
My question is how do I find out which JS files even exist and which should I move up or down in the loading logic to speed up my shop?