Check out NordVPN, they have improved their speed a lot and now even have the fastest VPN badge by speedtest, ExpressVPN is another fast one, Buffered too.
Which one have you been using? Speeds depend on a lot of factors though, even on your Internet Provider
I didn't use a guide... :/
I just downloaded the game, created an account with google chrome translate and used Hide All IP or Softether as a VPN.
(http://www.vpngate.net/en/download.aspx) -> You need the