Comment # 4 on bug 1225729 from piotrus3g

(In reply to Fabian Vogt from comment #1)
> Please try booting the older kernel first and check whether performance is
> back to the previous level.
> 
> If not, please try downgrading Mesa, or rollback to the old snapshot and try
> upgrading mesa.

Unfortunately, I didn't do anything to protect the snapshot from getting
automatically cleaned up and it's not on my system anymore. The oldest snapshot
I have is 20240516 and it is affected by the issue. But I remember testing
updating only Mesa on the old snapshot. It has caused some visual glitches back
then, but if I recall correctly it didn't cause performance issues (although I
only tested mpv as it was the most obvious one).