I just upgraded MacOS from Catalina to Big Sur (all the way to 11.1) and now Eclipse is extremely slow. I have a handful of small projects in a workspace that was as snappy as you could desire when used in Catalina but now I get the beach ball when switching between two open tabs.
Launching, both Eclipse as well as projects, is also much slower, switching workspaces is slow and so on.
What I have tried:
- Creating a new workspace and re-importing my projects.
- Downloading a new version of Eclipse (I used to use 2020-09, downloaded 2020-12).
- Launching it in clean mode. This produces a warning
WARNING: Using incubator modules: jdk.incubator.jpackage, jdk.incubator.foreign.
Everything else works as expected after the upgrade. Computer is a Macbook Pro 16" with 6 + 6 cores i7 and 32 GB of RAM so it shouldn't struggle with the load.