We've made a bunch of other tweaks, including more high - resolution book covers, top recos from the community on book details pages, and more! (goodereader.com)
And for an example of what can be done, see Amazon's book detail page for my book POD for Profit. (newselfpublishing.com)
Quick Summary: The website is running 20 % faster across all pages (< 2 seconds load time), especially book details pages. (novelrank.com)