computer running games at 5fps

[safe nexus]

So around a week or two ago I was given a computer bc it arrived with a broken side panel, wasn't amazing, but it was ok, so I cleaned the glass out, then found out the cooler was broken, so replaced that, and got better ram to go with it, as it will be used for gaming and editing, here's the pcpartpicker.com link https://pcpartpicker.com/list/L2knHG

After this, it worked great, 300+ fps in every game, specifically fortnite, csgo, war thunder, and aim labs, and it never overheated.

But for some reason, after working perfectly fine for a week and a half, every game but csgo just started running at exactly 5 fps, I don't know how to explain, but it isn't even using anything past 20% percent, I've tried looking around on the internet, but no luck. I tried reinstalling the graphics drivers, but no luck. I tried resetting the pc, but no luck. I even tried resetting the gpu separately, but no luck.

Idk what to do, if anyone has any ideas, lmk

Thanks in advance!!

No clue why the gpu spiked here, but it was sitting at like 24% before this

[safe nexus]

Csgo runs a consistent 200+fps, and the 5fps is at all settings

[tardy halo]

Figure out what setting does that

[safe nexus]

No, every game runs at 5fps(besides csgo for some reason) regardless of the settings

[tardy halo]

Ow

Looks like gpu is maxing out

Reinstall drivers

[safe nexus]

Already did

Didn't help