I'm about to move into a pilot phase of using moodle as a provider for a Blackboard consumer. In this case I will be embedding moodle quizzes containing the STACK question type into Blackboard.
I have changed a couple of the Scheduled tasks settings for LTI. I've left the sync_members setting at the default 30 minutes, but reduced the sync_grades settings to every 5 minutes. My reason for this is that I think students will expect to see grades in Blackboard much more frequently than every 30 minutes and may panic if the grades aren't there is a reasonably timely fashion.
I am seeking advice as to whether reducing the grade sync time by so much will cause any significant performance issues? I expect there to be about 100 quizzes syncing initially, but hope the service to grow to several times this in the coming years.