Performance/Development question

I have a database running on our 8.0.1 Domino server that serves as a
central source of information for several other databases. When documents
are updated in this particular database, I need to update other databases
with that information on an almost real time basis. I had coded these
updates into the QuerySave event of the primary forms. For local users,
this update process is negligible. For remote users, the update process
takes way too long. For various reasons, we cannot utilize local replicas
for these remote users, nor can we bump up the bandwidth.

One option I was considering was take the update out of the QuerySave
events and make a scheduled LotusScript agent that runs every 15 minutes
or so that will take the changes in the main database and update the
secondary databases.

Another option I was considering was to code a Java program that would run
on the iSeries, wake up periodically and handle the updates.

Performance is a concern in this environment. Any opinions on whether it
would be more efficient to have a frequently running LotusScript agent on
the Domino server or a frequently running Java program running outside the
Domino environment but manipulating Domino objects ???

Thanks in advance,

Bob