&gt; (As for UIScrollView&#x2F;UITableView, I agree that they&#x27;re very fast relative to Android or current Web browsers for example. I know the reasons for this and they have nothing to do with the implementation language. Algorithmic and engineering concerns often trump programming language performance.)<p>I&#x27;d be curious to hear more about the reasons. I&#x27;m not familiar with the web side, but Android layout performance can be painful, especially on older devices running Dalvik.