I was playing rainbow as usual and I notice frame drops that affect my game, I changed my settings, nothing happened, still got 30fps, I went to GeForce experience and downloaded a driver I didnt need (I am nooby at computers sorry) and I went back into rainbow and saw that that my settings take up even more video memory. Can someone help me

Specs:
AMD FX 6300
GeForce GTX 1060 3GB
8 gigs of ram