[2020] Massive FPS decrease since last weeks update (PC)

Has anyone else noticed a massive drop in FPS constantly since last week? I normally get 130-150 in multiplayer and 160-200 in zombies but now I’m not even getting 100 in either and it’s really bugging me because I don’t want to change my graphics. My specs are: RTX 2070 super, Ryzen 3800x, 32gb ram