Add Ultimate performance to power scheme
powercfg -duplicatescheme e9a42b02-d5df-448d-aa00-03f14749eb61

Get GUID of power plans not needed, the below are from a windows 10 system, check to make sure GUID are correct and remove GUID's and place the numercal values. They a pretty much the same accross all Win$s.
powercfg /L


Export power plans and save in sysfile
powercfg -export "%UserProfile%\Desktop\powersaver.pow" a1841308-3541-4fab-bc81-f71556f20b4a
powercfg -export "%UserProfile%\Desktop\balanced.pow" 381b4222-f694-41f0-9685-ff5bb260df2e
powercfg -export "%UserProfile%\Desktop\highperformance.pow" 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c


Delete unused power plans. Float from High Performance and Ultimate performance to see which lowers the CPU more, keep better performing plan
power saver
powercfg -delete a1841308-3541-4fab-bc81-f71556f20b4a
balanced
powercfg -delete 381b4222-f694-41f0-9685-ff5bb260df2e
high performance
powercfg -delete 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c


If power plan is needed, import backuped power plans
power saver
powercfg -import "%UserProfile%\Desktop\powersaver.pow"
balanced
powercfg -import "%UserProfile%\Desktop\balanced.pow"
high performance
powercfg -import "%UserProfile%\Desktop\highperformance.pow"