https://bugs.kde.org/show_bug.cgi?id=416200

            Bug ID: 416200
           Summary: Performance issues compared to X11
           Product: kwin
           Version: 5.17.0
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: wayland-generic
          Assignee: kwin-bugs-n...@kde.org
          Reporter: tro...@free.fr
  Target Milestone: ---

SUMMARY
On Kwin Wayland, performance is really bad on my machine. The desktop
animations are really sluggish when som windows are open, while on X11 they
remain butter smooth. Even after deleting all plasma and kwin related config
files, the issue remains.

STEPS TO REPRODUCE
1. Start a Wayland session, open the K Menu : the sliding animation is butter
smooth
2. Open Dolphin (for instance)
3. Open the K menu : the sliding animation of the K menu is really sluggish

OBSERVED RESULT
The panel opening animation is not smooth.

EXPECTED RESULT
The animation should remain butter smooth with only one window open, as it is
on X11.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.17.5
KDE Frameworks Version: 5.66
Qt Version: 5.14.0

ADDITIONAL INFORMATION
Archlinux, Intel Integrated Graphics (8Th Gen CPU).

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