Even then it's quite vpn friendly but it can't speed up internet speed so I also think it will be a good step if build miror link taken .
No VPN can speed up your internet and any service that claims otherwise is just fooling you for obvious reasons. Paid ones are usually far more secure and stick closer to your max internet speed when compared to free ones.
You'll have delay on your internet connection if you are using free VPN. Try using premium subscriptions from VPN services, it will increase your internet speed.
As I mentioned above, paid VPNs won't magically increase your internet speed. Only your ISP is capable of that. However, paid VPNs do stick closer to your max internet speed.