I like your site, but it took a long time to load on my end. Have you tried the Google speed tests to see what kind of page load speed your website is running?
Also, I would think about putting the shipping information on the product pages, instead of having it posted on a different page. I know it seems petty, but people are lazy and like to have all the information they are looking for right there in front of them.
Hope your sales pick up soon!