This program changes the refresh rate of the primary display.
Inspired by Win11 dynamic refresh rate, but I prefer change it manually.
Change to lower rate to save power, change to higher rate when playing game.
Usage:
ChangeRefreshRate.exe newRate
change refresh rate to 60
ChangeRefreshRate.exe 60
change refresh rate to 120 or higher when playing game
ChangeRefreshRate.exe 120