New patch is out and I am very, very pleased.
RT Shadows are fixed. No more annoying pop-in.
Performance in Novigrad with RT enabled is much better on my PC. 60fps is held with only super minor drops, no huge drops to 40s and even 30s as before.
GPU performance is also improved, letting me enable DLSS Balanced (instead of performance) and still keep 60fps in GPU limited scenarios (dense forest).
Really good work, I did not really expect them to be able to get it to this state. I thought the RT peformance is just busted for good, given the age of the engine.