I've been getting the same thing since Xcode 13.0 (currently on Xcode 13.4.1). I had assumed my machine was just too slow, so was really disappointed when I recently upgraded to a nice new M1 Pro, but still getting big hangs (30 secs - 5 mins) whenever I: open the project in Xcode edit my Packages.swift file change branches. It seems to be the same even with/without launching with Rosetta enabled. One thing that helps is to disable the indexing in Xcode as described here : https://developer.apple.com/forums/thread/690573 Disabling the indexing at least seems to alleviate the slow delayed typing thing, but not the long freezes described above. So at least it makes regular code editing more bearable - but its still a massive handicap as you have to live without things like auto-completions, and the Test pane doesn't work either.