the trace you gave me doesn't show the high CPU usage. Your 80 is idle for 80%.
But I can see that you use ProcessHacker. Inside the tool click on Hacker->Options->advanced and uncheck the option "enable cycle based CPU usage". Now restart ProcessHacker. Do you still have the high CPU usage reported?
I disabled it and now the CPU graph is more diverse ranging from even 15% to 60% so I think it's okay .. Hope it doesn't escalates up to 100% again where I can't even use the mouse. Thanks for your help!