Ask HN: What bloated piece of software deserves a performant rewrite?

I think the entire stack needs to be rewritten, honestly. There's a lot of inefficiency such that we have multicore processors at gigahertz speeds and we still have performance problems due to the layers of abstraction we have at both the software and hardware levels.

VSCode in not Electron.

Check out Onivim 2, that's exactly what it is. It's written in ReasonML and compiled with a custom framework called Revery. It is a paid editor since it's made by a small team but it has a license where commits from 18 months before are made open source automatically.

You could also try an editor written in Flutter, which also compiles to native assembly code.

Emacs maybe? Joking... mostly