This is a great post that looks at one of the biggest issues facing Responsive Design…. Performance.
Website performance starts with design. Weigh a design choice’s impact on page speed against its impact on your site’s conversion rate. Do you really need eight different shades of blue? What value does this 1,000px-wide background image add? Will replacing a sprite with an icon font actually add more page weight and slow rendering, or will it be faster than the original image?An excerpt from Improving UX Through Front-End Performance