performance issue on iphone 16 after ios 26

I have a standard iphone 16 with ios 26 installed, and whenever i try opening games they run pretty smoothly, until i switch apps, reply to a notification by swiping down, opening control centre, and sometimes even changing the volume with the side buttons. After that, the game lags a ton and doesn’t stop stuttering until I close and reopen the app. for context, i got the update weeks ago and it only really happens on games.

iPhone 16, iOS 26

Posted on Nov 2, 2025 5:59 AM

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Question marked as Top-ranking reply

Posted on Nov 2, 2025 8:54 AM

Have you tried a forced restart:

  1. Press and quickly release the volume up button.
  2. Press and quickly release the volume down button.
  3. Press and hold the side button until you see the Apple logo (this might take longer than 10 seconds).


The operative word here is QUICKLY for the first two buttons, then a long hold for the SIDE button; and try it a couple of times, the timing is a little tricky. If done correctly this will always work unless the phone has a hardware problem. 


3 replies
Question marked as Top-ranking reply

Nov 2, 2025 8:54 AM in response to purple_aurora

Have you tried a forced restart:

  1. Press and quickly release the volume up button.
  2. Press and quickly release the volume down button.
  3. Press and hold the side button until you see the Apple logo (this might take longer than 10 seconds).


The operative word here is QUICKLY for the first two buttons, then a long hold for the SIDE button; and try it a couple of times, the timing is a little tricky. If done correctly this will always work unless the phone has a hardware problem. 


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performance issue on iphone 16 after ios 26

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