title: Eclipse unusably slow after upgrading MacOS from Catalina to Big Sur
body: <p>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.</p>
  <p>Launching, both Eclipse as well as projects, is also much slower, switching workspaces is slow and so on.</p>
  <p>What I have tried:</p>
  <ol>
  <li>Creating a new workspace and re-importing my projects.</li>
  <li>Downloading a new version of Eclipse (I used to use 2020-09, downloaded 2020-12).</li>
  <li>Launching it in clean mode. This produces a warning <code>WARNING: Using incubator modules: jdk.incubator.jpackage, jdk.incubator.foreign</code>.</li>
  </ol>
  <p>Everything else works as expected after the upgrade. Computer is a Macbook Pro 16&quot; with 6 + 6 cores i7 and 32 GB of RAM so it shouldn't struggle with the load.</p>