Hi Can anybody help, whenever I am running Notes app activity monitor shows 113% CPU resources being used and my processor temperature starts rising very quickly, until the fan spins up, temps reach 82 degrees celsius. OSX 10.11.3 thanks
I don't know that the combo updater that JohnDS suggested won't fix it.
However, first try turning off Notes sync for each account, one at a time, to see if the issue persists and to rule out the possibility that one of the accounts is behind the issue.