Using our Android App:
The most common issue here is people using the default Player, The best thing to do is change External player to VLC (on a firestick or similar you will need to sideload it)
Launch the app>login>click Live TV>click the three dots in the top right corner>click settings>change the default media player from Default to VLC. Unless you are on a firestick when you launch a channel you will be prompted to get VLC from the playstore.
Another Setting if the app supports it is changing Default decoder to Hardware or HW+