My vizio runs so much better without a connection. It used to semi-regularly get into a state where the screen was blank even though the tv was on. Because it was a smart tv, powering it off wouldn't actually power cycle it. I had to pull the power cord to reset it.
Now I use a chromecast plugged into it for streaming. before that I used a ps4.
My previous Vizio tv botched chroma functionality for pc monitor for 2 years before getting it fixed. It doesn't allow downgrade. Never connect to wifi again.
Now I use a chromecast plugged into it for streaming. before that I used a ps4.