Thank you all and @BBcan177 for the simple patch, because I was about to make a long post looking for help, and the little edit to line 4139 solved my CPU load issues with 22.05 completely.
I think this fix should be made more prominent - I am not using a 22.05 development snapshot, but rather 22.05 final, and I found this thread via a search and not via a browse of the forums. I feel lucky to have found it.