We usually consume a lot of data when streaming content. This will be noticed by your ISP and will throttle down your speed that will result in lags and buffering. To avoid being monitored by your online activity, you must use a premium VPN service like PureVPN. It will block any attempt made by your ISP to slow down your connection. Once it has masked your activity, you are assured that lags and buffering will no longer be an issue to your viewing experience.