Hey MPGH, I found a great alternative to Gamebooster called Game Fire.
Game Fire puts your CPU and system memory at your service, by reducing stresses on CPU through closing unneeded processes and functions and by defraging RAM to free up unneeded consumed resources. This is done in a smart way without affecting system performance or security. This will result in a smoother gaming experience. This is better than GameBooster because it uses less ram to close processes, therefore making your computer smoother.
Credits: Smart pc utilities (third party) I did not make this.