Question FPS drops/ lagging in game after a little bit of time ?

[ALostDev]

So first off, I need help with this because it's preventing me from playing any games. I have a problem where my game starts lagging/fps dropping after a few hours at first it was fine but then after a while it was around 2 hours when it would drop really low sometimes to 10 fps and then now it's pretty much instant. I've tried a few things using DDU, reinstalling drivers, and also using Intelligent standby list cleaner ISLC not sure exactly what it is it might be a memory leak thats what ive heard/read. here is a 2 minute clip of it being a bit suddle also here are some pictures of all my apps/ RamMap imgur also some pictures of my specs please help me. oh yeah also at first the only fix was restarting the game but now that doesnt seem to do much
https://www.userbenchmark.com/UserRun/51191804

 

[SgtWireless]

im not an expert on these things myself, but i had a similar issue to this once, and it turned out my GPU was actually dying and had to be replaced. if you happen to have a spare GPU to test that would either rule out or show the issue