download time and render time are totally different. tabless designs are generally faster, because designs coded using tables to strcure and style are most often, they're made by people who aren't good at coding, and they've nested about 12 different tables. the **** imageready outputs downloads easily and takes a lot longer than it should to render on the screen.

most people who are good at web development just code tableess because it's more logical and pretty much the same workload.