My FPS in game varies from day to day... sometimes I get decently high FPS, around 60-80, but on other days I get unplayable framerates with frequent drops below 30 even though I am playing on the lowest resolution which I don't usually use. I don't know what's causing this issue, as I play plugged in and close all background tasks everytime, and do the exact same stuff everytime and my fps still varies day to day. I use process lasso, could that be the issue? is anyone else having this problem?

My specs:

AMD ryzen 5 3500u radeon vega 8 mobile gfx 8 gb ram