My iPhones screen lags severly and is not going at the full fps it used to. Please look at the video.
http://www.youtube.com/watch?v=xK1D48B0kk0
iPhone 4S, iOS 6.1.2
Delete background apps, press home button twice quickly, in new row of icons at bottom of screen, press and hold on an icon until you get Red Minus Sign. Tap all the Red Minus Signs. Then Reset, hold both home and power buttons for about 10 seconds until the iPhone restarts itself.
Standard troubleshooting...
Try a reset by pressing the home and sleep buttons until you see the Apple logo, ignoring the slider. Takes about 5-15 secs of button holding and you won't lose any data or settings.
Remove all apps from Recently Used list...
- From any Home Screen, double tap the home button to bring up the Recents List
- Tap and hold any icon in this list until they wiggle
- Press the red ➖ to delete all apps from this list.
- Press the home button twice when done.
If still a problem restore with your backup.
If still a problem restore as new, i.e. without your backup. See how it runs with nothing synced to it.
If still a problem, it's likely a hardware issue.
iPhone screen lag
