I am not sure if this is only my case. Running HassOS 3.13 on RPi4 after upgrading to 0.110.4 (from 0.110.2 I think) the processor usage increased from average 3-4 to 8-10:
Thanks.
However my issue is not 4.8 related. I am still on HassOS 3.13.
I believe this was related to (I think) so called core version. Up until 0.110.2 it was as before and then I have updated to 0.110.4 (I believe on May 31st, directly from 0.110.2) and I am 90% sure that after this the processor usage jumped to 3-4 times higher.
Disc usage seem to be the same - I cannot see any change since this update: