[chubot]

Yes thanks for testing it. I hope we can get to "awk/Python speed" eventually, but I'm happy to have exceeded "bash and zsh speed"!

And I did notice that zsh can be incredibly slow -- just the parser itself is many times slower than other shells

A few years ago a zsh dev came on Zulip and wished us luck, probably because they know the zsh codebase has a bunch of technical debt

i.e. these codebases are so old that the maintainers only have so much knowledge/time to improve things ... Every once in awhile I think you have to start from scratch :)