I've just updated to the latest AC version and noticed AacKingstronDramHal_x86 (RAM RGB thingy) is suddenly taking 2-3% constantly on idle. This is with a 12700F and an Asus TUF B660.
Back on the previous versions, this only used to spike when using an RGB effect, but would completely disappear with a static color. Now it doesn't matter what, it runs high all the time.
now even on static mode the lighting services use 2-4% of my cpu. this happened after the new update which is version 184.108.40.206 asus has to fix it.
and btw here is a workaround until they fix the issue: after you set a static color close the app, go to task manager or services and stop the "ASUS AURA SYNC LIGHTING SERVICE" or the one that uses your cpu