You will have to clear cache. Or back up data and reset all phone. After a major android update some phone experience this. It's always advisable to reset and refresh the phone. It will come back as fast as brand new. Use samsung cloud to back up everything.
Revert Display Resolution: Change the display resolution back to the default or a lower setting to see if the touch responsiveness improves. Go to Settings > Display > Screen resolution and select a lower resolution.
Restart Your Device: Perform a restart to clear temporary files and refresh the system. This might help resolve any issues caused by recent changes.
Check for Software Updates: Ensure that your device is running the latest software update. Manufacturers often release updates to address performance issues and bugs.
Wipe Cache Partition: Clearing the cache partition can help resolve performance issues. The method to do this varies by device, but it typically involves booting into recovery mode.
Factory Reset (Caution: Data Loss): If the problem persists, you might consider a factory reset. This will erase all data on your device, so be sure to back up important information first.
Safe Mode: Boot your device in safe mode to check if third-party apps are causing the issue. If the problem doesn't occur in safe mode, it may be related to an app you installed.
