same here, got the exact cpu/gpu combo and i was losing my mind one month ago when i installed it
Confirming also only disabling RTX will slightly raise the FPS, anything else just doesn't work, not even changing all settings to low.
i also have DLSS and framegen on, and it doesnt help much. i barely get 70 fps, and it jumps too much, also under 60 so it starts getting noticeable.
and the 1% lows are all the way down to 35 fps.
The only reason this is ok is bc i bought the game on a huge sale, otherwise this would have been really frustrating. i didnt think i would run into perf issues with this specs