The audio cuts out intermittently every few seconds specifically during the races (also I have the pro subscription) since it is only the races that use the enhanced stream with all the options. The audio sync is fine but the audio just cuts out sometimes every 2-4 seconds and it will cut out for a full second. It's unusable like this. It seems like an issue with Firefox because the Chromium browsers don't do this (They have a much worse issue with video performance).