Low video quality is caused by a poor internet connection - it could be on yours or the blind user's side. Make sure that you have a good internet connection and ask the blind user to do the same. 

You need to be connected to the internet in order to receive video calls through Be My Eyes. You can either use Wi-Fi connection or your mobile data plan. 

As Be My Eyes is a video service, it requires a good internet connection to be able to transfer the video feed. If the connection is poor, it can result in a blurry or lacking image. If you experience this, please check that you have a strong internet connection. When in a call, Be My Eyes relies on the internet connection of both parties. So, even though you have a strong internet connection, the call might be slow because of the blind user's poor connection.