Xcode 11 unusable?


Is it just my luck - or is Xcode 11 unusable?

I just finally updated to Catalina and installed Xcode 11 (all latest versions of course).

Xcode 11 is totally non-responsive.

In Interface Builder, when I click elements they're not selected right away but after a brief delay. And then it takes several seconds until the info in the inspector updates.

Same thing in the code: everything happens after a brief delay. Code completion doesn't work at all.

Restarted Mac, quit Xcode several times - same thing in all project.

Xcode 10 works with no issues.

iMac 2017 27", 40 GB RAM

Any ideas?


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