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Designing for actual performance

This is how it goes. We put a load of shit into a single web page. This makes the page slow. Slow to load, slow to render. Slow.

Instead of getting rid of the shit, we blame the page refresh. There’s only one way to avoid the page refresh and that’s AJAX.

However, AJAX still needs to render new (parts of) screens. More crucially, it still makes a request to the server. That’s not all—there are penalties in using AJAX and it frequently results in slow experiences—not faster ones.

Firstly, making requests; handling different responses; traversing document trees; and injecting

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