DietPi

I can start a stream from the Xbox, but shortly after starting the stream, it'll hang - audio still plays, but video will stall and eventually kick back in. I'm using an iPad as the wireguard client and using one connect as the Xbox streaming client. I know that one connect does not officially supp...

Marcdraco shared a good solution but you should even change your VPN service. NordVPN maybe is creating a problem. I suggest you review VPN service and find your perfect VPN that is suitable for PiHole and DietPi.

I don't know about Raspberry Pi vs VPN router. I set up a router for connecting to my VPN, therefore slow while connected to VPN. I also run VPN on my phone 24/7. My VPN allows 5 simultaneous connections with [static IP address, so I am well within the limit.

Try Ivacy, it supports windows, linux, mac and android. Read the detailed analysis here:

https://www.vpnranks.com/vpn-reviews/ivacy/