I'm having a hard time deciding whether to use X11 or Wayland for my KDE / Plasma session as I seek the best from both worlds. Wayland has the advantage of being visibly faster, to the point where you can see the mouse cursor and desktop effects working more smoothly. However it has the disadvantage of being a lot more buggy and requiring several tweaks to prevent session crashes, as well as missing features such as no proper clipboard functionality. While I managed to tweak my desktop settings to prevent the base crashes, I'm now facing other major issues that make me ponder trying X11 again... yet I don't want to go back to the ugly slow renderer, particularly now that I have an 144 Hz monitor and the eye painfully picks up on how much slower it was!

I figured I'd hope for the unlikely and ask: Is there a way to tweak X11 so that it can look and work as fast as Wayland on an 1080p / 144 Hz monitor? I remember KDE / KWin once had a setting called EGL which did in fact make it go as fast, however it was removed years ago and implemented exclusively for Wayland. Is there no other way to get the same smooth rendering to work?

Which compositor backend are you using with Xorg and KDE?

This could be useful info...
You could cast your net wider, and post your question in the KDE forums perhaps...
https://forum.kde.org/

Edit: I see you already have
https://forum.kde.org/viewtopic.php?...dering#p433159

Good luck!

Posted a thread there too. For now I rearranged my USB ports and the mouse / keyboard disconnect issue seems to have stopped. There are still problems such as crashes and lack of full clipboard functionality, but those I can continue working around so far.

Yes, just read that in the openSUSE forum.