[constexpr]

I think the odds are pretty good. The TypeScript compiler's performance is not optimal: https://twitter.com/evanwallace/status/1275945317045657602. Microsoft's TypeScript team has a lot of priorities and other things likely take precedence over performance work.

Also it's pretty trivial to build a faster compiler if you don't have to worry about type checking. You can still have type checking with a bundler that ignores types by running the official TypeScript type checker in parallel with your bundler.

[rubber_duck]

But without typechecking I still have to run a separate tool during development (which is where single pass performance matters the most me) - so suddenly it's not a single parse all-in-one solution.