All that program does is close applications that use the internet, wich can help if you have shit internet. VPN doesnt really solve a ping issue either, since it's just fooling you. As far as i know, while using a VPN, the ingame ping calculator only calculates the time it takes from the server to the vpn, not time from vpn to you. There could be other factors as well, but im pretty sure it can't really decrease latency.