Here are some best practices to consider when using SharePoint:
When a place contains more than 1000 documents, performance may be affected when Jive users try to access SharePoint documents without the appropriate permissions. Here's how you can improve performance in this situation:
You may want to set sharepoint.activity.polling.request.initial.timeLimitSeconds longer than sharepoint.activity.polling.request.timeLimitSeconds because there should be more Activity Stream items to process in the first request, depending on the start date specified when socializing the SharePoint site to Jive.
You should also set both values comfortably below the IIS thread timeout value which defaults to 90 seconds.