Load a page in less than a second; reduce the number of server requests; keep your CSS and JS merged and compressed to keep them under 50 kilobytes. . .these are just a few among technical solutions and recommendations we get to tackle performance issues. But there is one catch: your users don’t care about absolute values in kilobytes, milliseconds, and number of requests. Performance is not about mathematics. Performance is about perception. Perception is what makes a site with very few requests nevertheless feel slow, while a site that delivers search results during tens of seconds can feel fast enough for your user. User’s perception of your website’s speed is the only true performance measure.
The time is ripe to understand performance from the user’s perspective. Join Denys Mishunov to explore the brain, perception, neuroscience, and psychology. Oh, and performance, of course. Drawing on his “Why Performance Matters” series of articles in Smashing Magazine, Denys reviews techniques for perceived performance optimization and offers examples of cases when performance might be not what the users expect.
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