Problem driver NVIDIA 455.45.01 on Linux Mint 20 (4.6.7)

nvidia-bug-report.log.gz (267.7 KB)

Driver seems to be loaded but very bad performance once booted. So bad it is hard to simply navigate the despktop with lagged mouse movements.

Screen res locked at 1920x1080. Nvidia X Server Settings window comes up blank.

Nvidia bug report attached.

Any ideas what it could be?

Thanks in advanced!

The nvidia kernel modules are loading too late so the Xserver is already up and falls back to the simple fbdev vga driver.
Please try re-creating the initrd:
sudo update-initramfs -u

you might also have to add to /etc/initramfs-tools/modules
and then update the initrd.