3. Planning for Performance
“I want you to ask yourself when you make things, when you prototype interactions, am I thinking about my own clock, or the user’s?”
—PAUL FORD, “10 Timeframes,” http://bkaprt.com/rrd/3-01/
We’re Not Doing a Good Job
Page-load times in the ten-second range are still common on modern mobile networks, and that’s a fraction of how long it takes in countries with older, more limited networks. Why so slow? It’s mostly our fault: our sites are too heavy, and they’re often assembled and delivered in ways that don’t take advantage of how browsers work. According to HTTP Archive (http://bkaprt.com/rrd/3-02/), the average website weighs 1.7 megabytes. (It’s probably heftier now, so you may want to look it up.) To make matters ...
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