iPhone 12 slow performance on iOS 15, iOS 15.1

After updating from iOS 14.8 to 15, 15.1 my phone became really buggy

•opening and closing apps and swipe gestures are noticeably slower thank before

•apple apps behaving differently (force quitting, lagging)

•AppStore apps lagging

•safari is extremely slow compared to 14.8 and unreliable when viewing documents and pdfs

•keyboard typing is slower than before

Generally the phone (iPhone 12) feels slower than my old iPhone 8 plus

I have talked with apple support multiple times but the issue wasn’t resolved.

I have tried restoring the phone and starting it as new.

These issues are present even on iOS 15.1

The updates doesn’t seem to help.

It’s a shame that such a good phone is performing like crap now.

GOOD JOB APPLE ON THIS ONE👍