Schedules: slow downloads while the family watches, and do the heavy work at night.
In Broadcast: Server, Getting media, Schedules and quiet times (with the speed schedule and quiet hours).
In Classic or Neu: Settings, Downloading, Schedules.
Times of the week when Usherr behaves differently.
For example, TV time from 8 in the morning to midnight: downloads are limited (say to 15 MB/s) so streams and the TV never stutter, and they go full speed overnight. Pick the days, the hours, and what changes.
Heavy work (scans, conversions, Read-to-Me) can wait for quiet hours the same way.