Hi, you can get a really good performance for 4K streaming, but be sure that you have a goggle point near the TV, in the same room for example, a mesh connection like 3 point in different rooms can help you but just one in the living room is not going to provide a good signal in your bedroom for a fast streaming, the router is going to switch from 5ghz band (faster) to the 2.4ghz automatically due the distance from the point and the speed come down almost an half.