Internet has nothing to do with this. You could be in a submarine at the bottom of the Mariana’s trench with a Frame, a good enough computer and a random (decent…) WiFi router plugged into power only, and it’ll work. Your local network is not part of the internet.

Performance was fine even on the Oculus Go. Streaming performance is about the computer and quality of your wireless access point, but supposing both are fine, it’ll also be fine. Been doing it since the Oculus Go.