To enable Ultimate Performance mode in Windows 10, follow these steps:
1. Search for Command Prompt in the Start menu.
2. Right-click the Command Prompt result.
3. Choose “Run As Administrator.”
4. In Command Prompt window, type the following command:
powercfg -duplicatescheme e9a42b02-d5df-448d-aa00-03f14749eb61
5. Press Enter.

You now will have an Ultimate Mode in power & sleep settings which you should select.

You can always switch back to Balanced if you don't need 100% horsepower.

Note this only works with Windows 10 versions up to 1909.

You can read more here with an explanation why they disabled it.

What is Ultimate Performance Mode in Windows 10?


smile Kevin

Last edited by Kevin Woolley; 12/10/20 08:39 AM.