For a project with 20-30 files and around 8 dependencies, it took 10-20 seconds to compile and 4Gb of RAM (yes I checked with tsc --listFiles that no other files were parsed).
The same in Go to compile to native would probably take <5s in my experience!
Something is very wrong here. If you use `tsc -w`, you should get incremental compilation. Small changes should compile almost instantly.
For me, even without using `-w` on pretty large projects, my compile time is never more than 5s.
I have to wonder if you have bottlenecks elsewhere.
Regardless, TypeScript's type system is much, much more expressive than Go's, so compile time will theoretically be slower. For me, it's worth it because compile time is an inexpensive way to save lots of maintenance time in the future.
(Note that I would never use TypeScript and Go for the same type of project, but that's my mindset in theory.)
Of course, that doesn't affect the slow production build time, but I care a lot less about that (since it usually happens off in CI land somewhere and I'm not sitting waiting for it to happen.
So ultimately, this is a non-issue for me.