I am using Fedora 41 with a KDE Plasma desktop environment on X11.
If I use the KiCad version 9.0.1rc1, then my PCB editor slows down a lot if the display of contact pads is enabled.
There are no problems with this on the KiCad 9.0.0 version, but when I try to move a component on the PCB, I get long delays. At the same time, only four cores of my Ryzen 5 5600G processor are running, when the rest are idle without load.