Im running SM OS on RPi 4B+ and updated it recently:
stellarmate@stellarmate:~ $ uname -a
Linux stellarmate 5.15.30-v8+ #1536 SMP PREEMPT Mon Mar 28 13:53:14 BST 2022 aarch64 GNU/Linux
Running Kstars seems to be causing Xorg CPU % to gradually increase upwards of 95%+ until Kstars and the pi desktop
become sluggish and almost unusable. I tried turning off all Kstars visualizations (comets, stars, planets, labels etc.)
but no improvement. Any ideas on how to trouble shoot this ?