Hi The CPU Frequency is stuck at 80% in Resource Monitor What it means. Is it Hardware Problem. How It can be corrected . Thanks.
Most likely one of your processes is hogging resources. Check in task manager to see what's being used .
If in fact it is frequency (and not usage), then a power plan is more likely to blame. Set it to high performance and see if that does anything. If not: PC is not getting enough juice from power supply.