The pseudo-JIT provided by gccjit is really quite good. I’ve been using emacs for a pretty long time and it is definitely the most noticeable improvement they’ve added so far (and it even works seamlessly out of the box on windows!)
It is exceptionally good, indeed. Emacs now starts up in an instant (< than 1 sec) from the cold to a fully working state, which includes loading a hefty .emacs
