Safari takes a long time to start (Version 15)
After updating Safari to Version 15.0 (16612.1.29.41.4, 16612) it takes minutes to start the application. During this time Safari uses close to 100% CPU and is not responding.
After a couple of minutes things seems to work as normal. Although sometimes I can feel that the computer becomes a bit "sluggish", often with many Safari windows open (don't know if that's normal or not). I have a MacBook Pro (16-inch, 2019) with plenty of memory so the hardware should not be a problem.
Has anyone else seen this? Any clue on what to do? I've disabled all extensions but that doesn't help.
MacBook Pro (2020 and later)