Lagging

Sometimes when I load into a match or a plane, it lags very bad and the FPS caps around 7~ fps. I have to reset my graphics by slightly changing them lower and it even happens when I am on low graphics. Currently running a RTX 2080 Super and sometimes it says “Insufficient video memory reduced textures to high”

Also is this my graphics card problem or game problem?

Also, my game sometimes randomly freezes and then crashes saying “send crash dump to developers?” I never had these issues before when I had my 2060.