Plasma stuttering at 24fps

A couple of days back, I ended up refreshing my home directory after moving the .config folder failed to refresh my desktop.

It’s super laggy, stuck around 24fps (but 60fps on a TEST user).

Doesn’t seem to be anything running either… but there’s an annoying ‘system-modules-load’ error saying 'Failed to find module ‘nvidia-uvm’.

I don’t have nvidia… I have a Ryzen 5600G so it’s usually pinned at 60fps.

Anyway, I restored a snapshot and all seemed fine until this evening, the lag kicked in when my son opened Plex to watch something…

I killed Plex, stopped the server and rebooted - still stuttering at 24fps.

Any clues?