Question brothers pc only getting 15 fps??

[Xnitro67]

The last time it did this i just reinstalled drivers with clean installation and some other things not sure whats causing it this time so im asking for some help here.

his specs:
2700x
16gb ram
2080ti
750w psu

 

[Xnitro67]

found it was overheating again i think the water cooler it has isnt all that. its alphacools cooler