I hear a lot of discussion about how jQuery isn't that slow, the test wasn't perfectly fair (what test is?), that keeping code small is important, and that development time is the most important thing.
1) Lots of people take speed tests seriously, even if they're not a good way to judge a libraries use. 2) Making jQuery faster doesn't mean it has to be bigger in size, only more clever. 3) Development time is important, but so are viewer's patience. Slow code is never good. 4) People's perception of a jQuery is what will ultimately decide it's fame. I've seen jQuery on the slow end of lots of speed tests. Even if there are good reasons for it being slow, we should strive to make it faster. ~Sean