Programs like GameBooster have nothing to do with your ping ingame. However, anti-virus programs may slow down your internet, and your firewall may do that aswell. I recommend disabling your anti-virus program and your firewall while you're ingame.
A high ping is always caused by a bad internet connection. Maybe your ISP has a hard time right now.
Also, your OS doesn't have anything to do with your ping, just like GameBooster.