or rendering the main view as quickly as possible, indicate that
    loading is in progress and fill the information asynchronously. In either case, you should
    indicate somehow that progress is being made, lest the user perceive that
    the application is frozen.</li>
    
    <li>Use performance tools such as <a href="../../tools/help/systrace.html">Systrace</a>
    and <a href="../../tools/help/traceview.html">Traceview</a> to determine bottlenecks
    in your app's responsiveness.</li>
</ul>

    </