Sundays can be problematic, but this is the first I've heard of fast Sunday.
The question is if this is LCR, or your Internet connection. If another ward is streaming when you're trying to process, that may be it.
Have you searched the
Help Center? Try doing a Google search and adding "site:churchofjesuschrist.org/help" to the search criteria.
So we can better help you, please edit your
Profile to include your general location.