massive fps drop over time for no reason

i get around 15 fps drop over around a minute or two of gameplay when using reshade all while doing nothing but standing in one place. This still happens even if i have no shaders enabled and if i use the toggle effects key. Game in question is skyrim (oldrim) and i am certain it's not my mods because removing reshade seems to fix the issue. I have the latest version of reshade and the latest drivers and everything.