Well, it helped me to be able to see the store! That said, I don't really have any suggestions for you. The site/store doesn't have any glaring things that might be contributing to a slow page load that I can see.
My experience was, however, a good deal better than yours. The initial page loaf of the store's front page took just under 4 seconds from submitting the url until it was fully loaded, and subsequent pages to view products were a little quicker 2.5-3 seconds.
I agree faster would be better, but for me it loaded reasonably well. I'm sorry I don't have anything more helpful for you.
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