Bravia Site Header smoothness

hi gang
happy new year!

I have a question about the smoothness of the scrolling images in the Bravia website: http://www.bravia-advert.com/

notice how the paint blobs move nicely without any distortion or funny visual effects? I’m just wondering how I can duplicate that. I’m using a high frame rate (like 40) but I still get a bit of skipping and a bit of noise around the edges of the images…

Your help would be greatly appreciated!

Thanks