Windows 10: After my computer was updated to 22H2, I dropped frames badly every few minutes

After my computer was updated to 22H2, I dropped frames badly every few minutes

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Frame drops and computer turn off

My computer has been running fine until i turned it on a few days ago were i started experiencing terrible loss of frames making any game but minecraft . When i start up a game, it runs fine at 60 and above fps for the first 3-5 minutes, then over the next
1-3 minutes the frames start dropping slowly, going down to anywhere from 5 to 20 fps. The frames then stays at this low fps and do not go back to the higher fps i had when i start up the game. The monitor then turns off in the next minute or two, and will
not turn back on unless i totally turn of my PC. PLEASE HELP. Also i have done about 30 virus checks and there has still been no virus detected and did a fresh start which did not help at all.

 

Game frame drop

When I play a game for 20 minutes or less, my frame rate drops to 1-10 fps and I have to restart the game. I'm not sure what's causing this (counter strike global offensive)

 

Frame drops

I have been having terrible frame drops playing fortnite on my hp omen dropping from 120 to 30 randomly, tried reseting my computer didn't work. Does any of you have the same problem or better yet a solution. Thanks!