When viewing the home page, the news streams load first, followed by the tiles. When the tiles are at the top of the page, this can cause a confusing user experience.
This article provides information as to whether it's possible to change this behavior.
At present, there is no setting that would cause the tiles on the home page to load before the news streams.
A feature request to add in this functionality has been submitted for review by the Jive Product Team. For more information on this request, contact your account executive or customer success manager, referencing the code JIVESPECS-1381.