GUYS I FIGURED IT OUT!!!
I recently got a new computer with windows 11, it's very high end and I have experiencing this lag and beeping sound every so often, and I couldn't figure it out... how can a modern machine experience this kinda lag that happens so often?!
then i realised it must be to do with background changes as I set it to every 1 min. I notice my task bar would blink very fast after a background change, my mouse and everything else would lag... after reading this thread i verified that it was also the same problem...
ok yah so it is SORT OF to do with background changes. I realised we must all have this other setting on... under colors, ACCENT COLORS, is probably set to automatic. Every time windows changes backgrounds, all the accent colors change on all the windows and task bar as well! Even though a modern machine should be able to handle this.... I guess not LOL.
I disabled auto accent, and picked a manual one and it all stopped!
I disabled transparency effects just for good measure on top.
I'd easily give up those two gimmicks to have my beloved backgrounds rotate every minute.
try it out!