You can honestly get both, clean code and cracked optimization.
The only thing you’re not getting is free time, because once you start, it’s over 
Tbh you can just slap together a tiny parser/pre-compiler and turn mid code into a five-star meal for the VM.
Rojo sadly doesn’t let you hook into the VSCode → Studio pipeline (without crazy hacks), but imagine it: full-on #include-style headers for Luau getting inlined, and optimized on the way in. Would be cool as hell.