iPhone 12 is so slow

My new iPhone 12 is slow internally and especially when using the internet, even on WiFi. News feed won't even refresh. I'll try opening something from settings and it's even slow to open things that doesn't require internet. I'm constantly turning it off to see if this will help and it doesn't. I'm having a hard time using the internet even with the best wifi, it's almost dial up speeds to open a webpage. Is phone broken or is this normal? My old iPhone XS Max was 100x faster.

[Re-Titled by Moderator]