We've seen some BaconReader users who are unhappy with the frequency the orange envelope updates.
The update frequency for messages / the Orange Envelope, is the same as how frequently your story view is set to update in the Refresh Interval in the settings menu. So, if you want updated Orange Envelope, set story view update frequency high.
This can drain battery, so some users may want to set it to frequent, others to less frequent based on what works best for you.