Lagging after changing screen

I have had a huge problem with lag since ive gotten a bigger screen 2560/1440. i have tried differing the settings ingame but with no luck. I also tried upadting drivers, turning off HDR and alot of other stuff. any advice would be apreciated

specs:

12th Gen Intel(R) Core(TM) i5-12400F

Geforce RTX 4060TI