[kevincox]

I tried Spacemacs and was fairly happy other than the performance. Scrolling and even auto-indent were visibility slowing down my typing. It depended on the language but Rust, which is probably my most common language, was distinctly bad.

[ReneFroger]

The performance lag of Spacemacs was addressed by Doom Emacs ( https://github.com/hlissner/doom-emacs ). Have you tried Doom Emacs by any chance. After syncing everything, the performance is stellar in my opinion.