Load maximum number of collectables ahead of the "Show More" button without blank spaces

[BrightRaven]

Currently the number of collectables loaded is fixed or calculated based on screen size. Sometimes this causes the final row to load a partial set of collectables even though there are more images available if you hit Load More.

I expect it to load the maximum number of collectables to fill the empty space unless you have reached the end of the list.

I suspect there is a way to do this without convoluted math.