"Psychology of performance" slides from Velocity 2010.
http://en.oreilly.com/velocity2010/public/schedule/detail/13019
Running PageSpeed - all checks. YSlow - A. So what's next to do? Well, you can cheat! You know that time is relative - one hour with your mother-in-law feels much longer than one hour on the beach. The same way you can bend the perception of the page loading time and make the page feel faster, even though the RTT is the same.
9. Time perception
• UCLA – 53s -> 67s -> 91s
(dopamine)
• Age
• Geography - NY vs. LA
• Culture, climate
• Time of day, day the week
• Body temperature
15. It feels slower when…
• Unpleasant
• Unknown
• Boring
• Too much to keep track
• Never ever put too many
• Bullets points
• On a slide
• Never
• Harder to parse
16. Study of frustrations
• University of Maryland
• Slow worse than pop ups
• 1/3 to ½ the time lost in
frustrations
• Frustrations affect all else