How can I optimize the performance of my HTML5 project?

The link to my project is below. It is very slow to load most slides until they are cached in the browser. It appears that it is waiting until I advance to the slide in order to download the content.  It takes up to 5 seconds to display the content of a slide, and often times it shows the spinning loading icon. With HTML5 output, it automatically converts my 1280x720 images to PNG files which does not help. How can I optimize this project to make everything load faster? Is there a way for Captivate to constantly download slides before you view them? Please let me know if you have suggestions.
http://www.anacore.com/MediaStationSalesTool/
Thanks

Pasting into a blank project is not a nice option because it requires reconfiguring all of the buttons.They all reset to "Continue" when I do that. I would probably need to re-enter the Advanced Actions as well. There's no reason to think that would speed up the application.
You can see the content in the link up top: http://www.anacore.com/MediaStationSalesTool/. There are mostly slides with video and slides with 1280x720 images. Click the grey buttons to navigate and use the bottom right buttons to return home. Please let me know if you have any suggestions.
Thanks,
Jim

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