FYI @U07M2C8TT there is a comment there mentioning clojure-lsp, when we had the one thread to process requests/responses and found perf issues only on Emacs, that was the issue, a Emacs core issue in the end :)

Fascinating... I'm not sure I totally understand the problem or the fix, but I'm excited to try it. Have you run the fork yet @UKFSJSM38?

Not yet, I'm a nix user, so I need to double check how to build my emacs via nix pointing to another fork 😅

I saw a commit saying completions are way faster