I used DDU, did a "Clean and restart" in Safe Mode.
I used Windows update to update the windows version and it also installed update for the NVIDIA.
Then I used GeForce Experience to download + express install the latest driver for the GTX 1080.
Still, I get around 30-60 frames IN THE MENU and ~20FPS on Ultra settings and ~20FPS on low settings.
Device Manager, under display adapters, only shows NVIDIA GeForce GTX 1080.
Here is DxDiag: