I have a client with 10 Engagement Programs and most of them have multiple streams. The total number of streams (in all the Engagement Programs combined) is 27-30. There are a total of just over 161K people active (cadence = normal) in all the Engagement Programs combined.
Currently the different streams send once per week on a variety of different days and times - mostly in the sending time zone. My client would like to change this so that all the streams send on the same day/time each week using the recipient time zone. Is there reason for concern that this change might have problematic performance implications?