This will unlock ultimate power plan, which sets almost everything for best performance from default:
paste to elevated CMD: powercfg -duplicatescheme e9a42b02-d5df-448d-aa00-03f14749eb61
Also use this to show disable idle saver, this will cause CPU operate at state of maximum readiness c0, but it will cause CPU usage 100%
powercfg -attributes SUB_PROCESSOR 5d76a2ca-e8c0-402f-a133-2158492d58ad -ATTRIB_HIDE
I use process lasso, which allows me to disable idle saver when gaming and after quitting the game restoring normal power plan. It is great program and it is free.
Also make sure to stress test CPU first as this will cause overheating ,which should be no problem on desktop unless your cooler is garbage!
