High CPU thread usage

What I do before I run wow I make sure all task bar programs are exited… yes everything like curseforge or extra apps that really do nothing but hog system memory like logittech keyboard and mouse software or C Cleaner and malware bytes or VOICEMOD or virtual machine software… should just be windows… antiviurus blue tooth and WOW. THATS IT! nothing else. I have seen people try to play wow with 64 google chrome tabs open. SERIOUSLY!!! THAT IS INSANE!