I feel like I have a pretty beefy PC and yet since upgrading, everything runs relatively poorly.

https://imgur.com/a/YtNLIvT

Specs above. Computer struggles to play games like Dune, Path of Exile 2, Battlefield 6, etc. even on low settings. Rocking an i9 with 64 gigs of ram and a 5080 so I genuinely don't know what's wrong here. I'm hoping its something stupid and easy like a BIOS fix but genuinely I am at a loss. Any advice would be appreciated.