2.5 Beta not adhering to master-update-interval

Good Day,

I've set master-update-interval to every 5 seconds however based on the observered stream sync behaviour and relay server log messages:

[2022-05-15  22:52:39] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  22:54:39] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  22:56:39] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  22:57:02] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  22:59:02] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  23:00:19] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  23:00:34] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  23:00:35] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  23:00:50] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  23:01:05] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  23:01:20] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  23:01:21] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  23:01:36] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  23:01:51] INFO slave/update_from_master Master accepted streamlist request
[2022-05-15  23:02:07] INFO slave/update_from_master Master accepted streamlist request 

We can see the update is sporadic.

Master server running 2.4.5 relay server on beta.