OK, it turned out that the issues were mostly self-inflicted. I had installed pipewire on the 20.04 version using the PPA at [URL]~pipewire-debian/+archive/ubuntu/pipewire-upstream Since 22.04 has pipewire installed, but an older version, I had to purge the PPA to get the upgrade going. Once the upgrade was done, I re-added the pipewire PPA (and the accompanying wireplumber PPA), but sound was not working. I didn't think much of it, thinking that I would look into that later, and started chasing the performance problems. It turned out that the broken sound configuration was the culprit. Once I found the complete instructions for properly updating pipewire at [URL] I got the sound back, and the performance issues are gone. Kernel: 5.17.0-1025-oem x86_64 bits: 64 compiler: gcc v: 11.3.0Desktop: GNOME 42.5 tk: GTK 3.24.33 wm: gnome-shell dm: GDM3Distro: Ubuntu 22.04.1 LTS (Jammy Jellyfish) Device-2: NVIDIA GA107GLM [RTX A2000 Mobile] vendor: Dell driver: nvidiav: 525.60.11 pcie: speed: 16 GT/s lanes: 8 bus-ID: 01:00.0chip-ID: 10de:25b8  
As far as I know, there are no 22.04 Dell specific repos for that model. Does anyone know if there are any Dell-specific hardware drivers that may cause issues if I simply upgrade?
Has anyone upgraded Ubuntu pre-loaded Dell Precision 5560 w/ Nvidia A2000 to 
22.04?