Cannot play VR games on PC

Hello, I was looking to see if someone could help me with accessing my Steam games through the Oculus 3 headset. I was playing Into The Radius 2 with a friend. I noticed my connection kept lagging or disconnecting which means my Wi-Fi must not be able to keep up with the game. I then was told to use Link Cable by Meta to connect through hard wire through my PC. I went out and bought the $80 cable for it to not allow me to play the game I want to play. I connect the cable, and log into the Oculus. I go to the Steam Link to access my games but it says I have to be connect to steam link via wire-less. I don't want this because of my internets Wi-Fi. I tried googling multiple different ways to fix but cannot figure out how to get around this.