Running an Ethernet connection to your streaming device will free up your Wi-Fi. Here are devices that let you do it.
https://www.cnet.com/tech/home-entertainment/best-wired-streaming-device/?utm_source=dlvr.it&utm_medium=blogger#ftag=CAD590a51e
https://www.cnet.com/tech/home-entertainment/best-wired-streaming-device/?utm_source=dlvr.it&utm_medium=blogger#ftag=CAD590a51e