Yes, you should upgrade to a paid VPN. Free VPNs have limitations and risks. You can never expect to enjoy the full spectrum of features of a premium VPN in a free VPN. To begin with, a free VPN will not have a sound server network like ExpressVPN or other premium VPNs. Further, it will definitely lack in safety and privacy features and can cause inferior streaming with perils like bandwidth throttling by third parties. Most importantly, free VPNs are infamous for selling user data. So, to optimize your streaming experience and maintain your online anonymity, you must upgrade to a paid VPN.