STEPS TO REPRODUCE 1. open kPatience 2. play a few games (mabe 4 or 5) OBSERVED RESULT After every game, X consumes more CPU. You could close the game and open it again, the the consuming starts again, like there is someting in the background, that will not be given free (it seems not to be the memory). Only reboot helps. EXPECTED RESULT X consumes not more CPU. SOFTWARE/OS VERSIONS Linux/KDE Plasma: 6.4.0-150600.23.22-default (64-bit) KDE Plasma Version: 5.27.11 KDE Frameworks Version: 5.115.0 Qt Version: 5.15.12 ADDITIONAL INFORMATION 2 × 13th Gen Intel® Core™ i7-13850HX, 8GB memory I could give more informations, if I now, what you need to analyze it.