Do you find IntelliJ slow? Once mine finishes indexing a project, the rest of the time it feels lighting fast. M2 Max here, 32GB. I think I allocated 16GB to IntelliJ (manually, in the help menu I think). I usually have Webstorm and RubyMine running side by side (for frontend and backend projects) along with a bunch of other apps and browser windows and they all feel really snappy. Hmm. Are your projects huge? Or does Java have a lot more overhead?

Jetbrains also offers hosted instances if you want to see if that's any faster... https://www.jetbrains.com/space/features/dev-environments.ht...

(I haven't tried it, but it seems to me that network latency at 30-100ms shouldn't be as noticeable as a slow computer, if that's really the issue)