Joomla Flip Book how to optimize loading time
To optimize loading time and to make your Joomla Flip Book look more presentable, use big image size for a zoomed page and a small image size for an unzoomed page.
For example, if you are planning to add text description or any important information on the flip page, you'd better upload regular image size, however, you can save loading time and upload small size images if your Joomla flip page component will contain only an image, and some small piece of information, like the name of the product or its price.
Detailed instruction how to prepare images for your Joomla Flip Book component you can see by following this link: "How to prepare images for the Joomla Flip Book"
Normal Joomla Flip Book Page
Zoom-In Joomla Flip Book Page (Full Screen mode)