Really severe fps drops with new gpu!

[Laycoon]

So yesterday I upgraded from my gtx 970 to the new gtx 1660 ti, I installed the drivers and decided to try a few games.

 

Cranked settings up on my games, while maintaining really high framerates, perfect! Right?

 

Well today I crash in Apex Legends (A pretty common thing if you've played the game) so I didn't think much of it and decided to run ccleaner and repair game files to try and help my cause.

 

This is where things go south, My game refuses to work completely so I reinstall the drivers and my pc starts acting really weird so I do a complete shutdown of the pc and go do some stuff to let my pc "Chill out a bit" and return to see everything on my pc is normal, and my Apex Legends loads and looks great. Getting my high framerates on the same settings from yesterday everything looks right... wrong!

 

I start getting these really funky fps drops from 144 to like 35 in the middle of fights, which is a huge problem when trying to land any type of shot on anyone. And it's not just apex legends, Anthem has really weird drops, Battlefield V, Golf It, and even lighter titles such as gmod and what not?

 

What should I do this is really really annoying... any help is greatly appreciated!

[xg32]

full system specs? and ddu to current drivers.