I have just checked tomshardware GPU charts 2023. It seems like that this is the performance for 4k/UltraWide with this card.

Using FSR or a lower resolution should get you higher fps.

I have checked the GPU Hirarchy 2023 at tomshardware. It seems like that the 7800XT does around 60fps in 4k or (Ultrawide in you case). Unfortunately the CP2077 benchmark was done with RayTracing.

So i have rounded the fps when compared to other games.