It's Facebook's own standard: "We knew we wanted Facebook.com to start up fast, respond fast, and provide a highly interactive experience.". The person you're r

It's Facebook's own standard: "We knew we wanted Facebook.com to start up fast, respond fast, and provide a highly interactive experience.". The person you're responding to is saying they haven't met their own metrics for success based on their experience. You can't really attribute this "preference" solely to them.