Here are some steps you can take to troubleshoot a slow or non-responsive internet connection when using a VPN:
Check whether your device is connected to the right WiFi network.
Verify that your device isn’t connected to a public network that may have VPN restrictions in place.
Disable any anti-virus or firewall software you may have installed on your device.
Ensure that your VPN’s host server is active and up-to-date.
Test your connection speed to make sure the VPN is not slowing down your internet connection.
Check the VPN’s installation guide and follow the directions to ensure that the VPN is properly configured.