AFAIK Doom Emacs is either already switched to async compilation or in the process of moving that way. So it shouldn't be pre-compiling the packages anymore or

AFAIK Doom Emacs is either already switched to async compilation or in the process of moving that way. So it shouldn't be pre-compiling the packages anymore or that's the idea. I wasn't closely following the discussions around it, so I don't know the exact specifics. Async compilation does not slow down the startup time, it's not what I said. My Emacs instance also starts very fast, that is a signature feature of Doom. But do check your buffers, there will be *Async-native-compile-log* there. What I'm saying is that when you start it, while it's running compilation asynchronously you may feel some slight, almost unnoticeable (or super noticeable - it's subjective) UI performance dip, it's not a big deal.