The effect is an "old hat trick" which I'll attempt to explain just this once for you. I will speak of it no more.
To give a faster view of a web page, one can PROXY the web content and COMPRESS the graphics to a point that will transmit faster, but may suffer in overall quality. Most of the offerings allow you to right-click and view the image in it's original form.
I have a 56k modem and I have been hearing about the Top speed technology in aol and others make dial up 5xs faster ....what is this and is this true???