Having used my new 5900X for a while, it's a significant improvement over my 3900x in VR - games which had poor performance like No Mans Sky and Fallout 4 VR now perform really well, hitting 90fps most of the time. I even find I can increase the Supersampling with little effect on the framerate.
I have tried the auto-curve optimiser's per core optimisation, but while the performance increase was significant, I get random reboots.
The optimiser put all cores at -22 which seems a bit suspicious that they're all set to the same value. I think I'll have to do some manual tweaking at some point.
I'd prefer if the temps were a little lower - it's going to 80 degrees regularly while gaming, but I understand these chips will boost as high as the thermal limit will allow. It's not reached 90 degrees at any point though, and there is the issue that my 3090 will be dumping quite a bit of heat into the case, which is not what you'll see when just doing CPU testing.
I did have a momentary twinge of regret that I didn't get a 3800X3D as that seems to have some huge advantages in some games, but the performance of the 5900X is definitely good enough for my use case.
That is a little warm, what are you using for cooling?
Try setting curve optimiser to -15 across the board, it's usually a good starting point.