I don't think I've ever seen a web site where the content was so interesting, but the presentation was so piss poor that the bulk of visitors likely leave without having even read any of this cool stuff.
For the love of god, throw your web site away and start again with some simple, static HTML pages.
I'd second this, just tried loading it on a tablet and gave up on the load screen. It was 50/50 I'd read the comments but I'm glad I did now.
Please please, for goodness sake, put a quick loading static page front and center quick! This stuff is too important and too cool to be lost to same hokey web design.
The page we are reading can quite easily be remade into a normal web page as it involves few of the exotic/mind blowing animations seen elsewhere on the website.
The first page view shouldn't be loading all that crap that isn't being used.
For the love of god, throw your web site away and start again with some simple, static HTML pages.