Never mind. I'll change the pages to have a homepage that explains what the app is and a button/menu item to go to the search page with the listview. Labelling it as "show all x" can flow better with the overal design I had in mind.
There doesn't seem to be an option to delay or "wait till" for Listviews.
If you set the Search bar of the data grid to 'Always visible' or 'With button (initially open)', you get an option to set an attribute 'Wait for search' for the data grid. If this is set to Yes, the grid does not initially populate and you have to set one or more search attributes to display matching records.