Here are a couple suggestions:
1. Can you reduce the size of the preview image to allow for faster scrolling/navigation?
2. Can you increase the amount of items shown? In some cases we have many more most that what you can view on one page which makes reordering time consuming when moving things from page to page.
Note to development team: I went ahead and increased the number of items displayed by overriding it in the view for this particular client as a workaround.
How about remove the images altogether and significantly increase the number of items?