Apple's dev culture just seems to have more give-a-shit about performance (and, relatedly, battery life) than anyone else's. See also: Safari, their office suit

Apple's dev culture just seems to have more give-a-shit about performance (and, relatedly, battery life) than anyone else's. See also: Safari, their office suite programs, Preview which is the first program I've seen that handles PDFs very well and doesn't also feel super-heavy (on the contrary, it's very light), Terminal which is more-or-less competitive input-latency-wise with the best available anywhere else and is way better than average, and so on.