If we put the images in sequence with page one first and page two second, then I don't think we'd be waiting for each one. Assuming the test runs fast enough that it can verify all images on a page before it switches, we'd only be waiting for the switch to page 2 at one point. 

Anyway, if this passes consistently then that's good enough, but it scares me - it seems like it would be prone to intermittent failures.