It's the iOS 17 simulator bug. Try changing the simulator sdk to 16.4. For now this is the only fix.. And check the activity monitor.
Noxid
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Post
Replies
Boosts
Views
Activity
Thank you!! this seems to fix the issue.. I have checked the Activity monitor for power spikes , dignosticd and a few more process won't show up at top anymore. I hope the Devs fix this soon....