For those comfortable with more technical solutions, ffmpeg can re-encode specific parts of the file. It's a free, open-source command-line tool that can fix sync issues and other problems by remuxing the file. You could use a command like this to adjust the audio delay:
buttons to adjust the audio delay in 0.1-second increments until it matches the video. VLC Player Fix: On PC, press the key to delay audio or the key to speed it up. Alternatively, go to Track Synchronization and enter a numerical delay. Decoder Fix: aparichit dual audio in hindi 720p movie work fix