Many fans are having issues with the audio on the live stream on the WWE Network. There were similar issues during NXT TakeOver: Toronto. For many fans watching on a connected device, the audio tends to fall behind the video being shown.
I’ve been told that people at the WWE Network are aware and they are working hard to fix the problems. One thing you can do (for now) is to hit pause and then click on the “Go To Live” button.
That is a temporary solution and you may need to do it several times tonight to get through the show without the audio delay.