The touch input stutter issue that exists since iOS 16 on devices with Pro Motion Displays has not been fixed yet. I filed a bug report in July but there isn't any progress since months. I see the problem in all games I tried. My game is fast paced so the stutters are quite obvious and I receive a lot of complaining emails.
My game did run smoothly on Pro Motion devices with iOS 15. Is there a known workaround? I am seeing other developers having the same issue but I can't find any solutions.
Other threads about this issue:
IPhone 14 Pro stuttering in most games when using touch controls