Here's my config. It's mostly based off practicalli's config. https://gitlab.com/wildwestrom/dotfiles/-/blob/MacOS/emacs/emacs/spacemacs-config/init.el

You appear to be using aggressive-indent-mode, which can cause conflicts. I've created a ~/.lsp/config.edn file https://github.com/syl20bnr/spacemacs/issues/14389#issuecomment-782012584 and it seems to be working quite well and fast.

Yes, try disabling formatting as cljfmt has some performance issues sometimes, you can the performance section here as well: https://emacs-lsp.github.io/lsp-mode/page/performance/

It looks like cljfmt is disabled in my lsp config.edn. https://gitlab.com/wildwestrom/dotfiles/-/blob/MacOS/lsp/.lsp/config.edn

The best way to disable indentation is via lsp-mode with lsp-enable-indentation

set lsp-enable-indentation to nil?

yes

Looks like it's already set to nil.

Looks like I'll be using cider for awhile longer.

if it's nil, formatting is already disabled. If you are having performance issues, and already followed https://emacs-lsp.github.io/lsp-mode/page/performance/ you can ask for help on lsp-mode https://discord.gg/swuxy5AAgT server.

But I can say if you configure everything correctly, performance should be good

Ok, I reinstalled Spacemacs. After running the profiler, it seems like there were some artifacts left over when I tried emacs 28 with native-compilation. Scrolling is much quicker than before.

Good 🙂 I use doom-emacs with native-comp for months and works perfect too