Optimize images and make a sprite. Right now you load like 20 or 30 images and even more, not from your server (not sure how aws3 fast, tho, but I would better load them from your server). With sprite you will download only 1 single image instead of all these 20 or 30. Here you can read about it - css-tricks.com/css-sprites/
Some more tips - developers.google.com/speed/p…