The quote about the 30 results sounds tenuous at best. Did the user search 20% less often because of an imperceptible page load time, or because they became ov

The quote about the 30 results sounds tenuous at best. Did the user search 20% less often because of an imperceptible page load time, or because they became overwhelmed with the number of search results and decided to quit? User experience drives more activity than performance. Perf is important, but that particular example sounds totally bogus to me.