Why when downloading film audio does not sync ?

Question as per title. I have downloaded film twice and both times dialogue and sound effects do not sync with associated action. However, the time lag with the second download was not as pronounced as the first. Is there an iTunes download setting I need to change or is the problem more likely to be ISP related (e.g. download speed, contention).
Aaron

Hi tclemmons and welcome to our community
Are you serious? 400-500 slides? Yikes! The normal typical
recommendation is 50-65 slides as a rule of thumb for upper limit.
I'm surprised you aren't seeing other issues besides just audio
sync problems. Red screens of death, etc.
Sorry, but other than suggesting that you trim the movies
down to smaller chunks, I have no recommendations or words of
wisdom. Perhaps others may.
Cheers... Rick

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Why when downloading film audio does not sync ?

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