KDE Multimedia edition is laggy

[BrutalBirdie]

Load over the CPU is too High | SLOW Response | Freezing | Hang | Crash

As well as all my other fixes I'd tested, I'd forgotten to mention this step which I applied today that helped immensely: I followed the recommended procedure of restoring a timeshift snapshot from the grub boot menu a day ago, I then did a GUI timeshift restore of my last snapshot once I booted into my desktop (as recommended). Afterwards shutdown and startup took much longer, and my system was extremely sluggish. Today I repeated what I thought may have helped with this type of system slowdow…