A slow network can cause slow streaming of your Apple TV, you can adjust your video resolution to match your network speed in order to avoid buffering and lagging. Go to your Apple TV’s settings

No. There is no web browser for Apple TV. You can use Airplay too mirror a web browser from an iOS device or Mac though. De plus, How do I use my Apple TV as

If your Apple TV keeps dropping WiFi or losing the network it was previously running on, one of the most common problems is that the TV is experiencing interference from other devices. In the room