FPS drops dramatically after a few min

When I initially open a default blank project, my computer runs fine with high fps for maybe a minute, then suddenly the fps just plummets down permanently until I restart my computer. I have a 1650ti laptop and never had this problem before. Usually, blank projects were running 60-100 fps consistently. Does anybody know what causes this issue and how to fix it??

Maybe its a plugin going rogue? Can you go into your uproj and disable them to see?

The thing is I reinstalled the engine, so it has no new plugins enabled or even downloaded! Maybe it’s a built-in one, but in that case, I wouldn’t know which one to disable.