Current system info (with bad performance):
Operating System: openSUSE Tumbleweed 20240524
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.2.0
Qt Version: 6.7.0
Kernel Version: 6.9.1-1-default (64-bit)
Graphics Platform: X11
Processors: 12 × AMD Ryzen 5 5625U with Radeon Graphics
Memory: 13,5 GiB of RAM
Graphics Processor: AMD Radeon Graphics
Manufacturer: LENOVO
Product Name: 82SG
System Version: IdeaPad 5 15ABA7

Current graphics drivers:
Mesa version: 24.0.7-1699.378.pm.1 (Packman)
Amdgpu packages:
xf86-video-amdgpu 23.0.0-2.2 (openSUSE-Tumbleweed-Oss)
kernel-firmware-amdgpu 20240519-1.1 (openSUSE-Tumbleweed-Oss)
libdrm_amdgpu1 2.4.120-1.3 (openSUSE-Tumbleweed-Oss)

System info from 20240418 snapshot (with proper performance):
Operating System: openSUSE Tumbleweed 20240418
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.1.0
Qt Version: 6.7.0
Kernel Version: 6.8.6-1-default (64-bit)
Graphics Platform: X11
Processors: 12 × AMD Ryzen 5 5625U with Radeon Graphics
Memory: 13,5 GiB of RAM
Graphics Processor: AMD Radeon Graphics
Manufacturer: LENOVO
Product Name: 82SG
System Version: IdeaPad 5 15ABA7

Graphics drivers from 20240418 snapshot:
Mesa version: 24.0.3-1699.375.pm.3 (System Packages)
Amdgpu packages:
xf86-video-amdgpu 23.0.0-2.2 (openSUSE-Tumbleweed-Oss)
kernel-firmware-amdgpu 20240322-2.1 (System Packages)
libdrm_amdgpu1 2.4.120-1.3 (openSUSE-Tumbleweed-Oss)

Issue description:
After updating from the 20240418 snapshot, my system got performance issues.
For example, when cycling through tabs in firefox by holding ctrl+tab, it
doesn't go through all tabs smoothly. There wasn't such a problem in the
20240418 snapshot.

Other performance issue occurs when trying to play videos in a virtual terminal
with mpv using the tct output driver (it uses colored Unicode block characters)
and sw-fast profile while Plasma is running or a user has logged out of it. mpv
drops frames, which doesn't happen on the old snapshot. Bash completion with
Plasma running has a delay with completing mpv options, that also didn't happen
on the old snapshot. Without Plasma launched the Bash completion seems faster.
I've also tested it with IceWM to check if it is directly related to Plasma and
here are the combinations and results:
1. Boot, sddm loads, I don’t start any desktop session and switch to virtual
console. No frame drops here.
2. Boot, sddm loads, start IceWM desktop session, switch to virtual console. No
frame drops here.
3. Boot, sddm loads, start IceWM desktop session and log out of it, switch to
virtual console. No frame drops here.
4. Boot, sddm loads, start X11 or Wayland Plasma desktop session, switch to
virtual console. Frame drops happen.
5. Boot, sddm loads, start Wayland or X11 Plasma desktop session and log out of
it, switch to virtual console. Frame drops happen the same as with Plasma
running.

It could be an issue with mpv itself, but running it the same way in Konsole
(with the tct output driver) doesn't show such performance issues. Bash
completion is still slow in Konsole, though.

Other issue is a weather forecast website windy.com that has an animated wind
map. It worked well on the old snapshot but now it performs very poorly. Tested
on firefox.

3D graphics performance in glmark2 seems to be normal and similar to the old
snapshot.