         "How to optimize your app's performance in various ways to improve its
           responsiveness and battery efficiency."
          >Performance Tips</a>
      </li>

      <li class="nav-section">
        <div class="nav-section-header">
          <a href="../../training/improving-layouts/index.html"
             description=
             "How to identify problems in your app's layout performance and improve the UI
             responsiveness."
            >Improving Layout Performance</a>
       