Have you tried DLSS 3 with frame generation yet? Ray tracing performance hits are mitigated substantially, 4K included. What is more shocking to me is how low they got the latency on it; I have yet to notice perceptible lag when turned on (contrasting this of course with TVs that attempt to increase frames to achieve the 'soap opera effect', where lag becomes substantial). I just hope more games support it one day.

FSR may one day get much better, but in my personal preferences and tastes, I greatly prefer DLSS for upscaling. It tends to be sharper, better at fine details at long distances, and tends to do better with certain (literal) edge cases.