title: UIWebView first request too slow
body: <p>I am using <code>UIWebView</code> to render web content in my application. I observed that the initial request when the app launches i.e. <code>loadRequest</code>, takes a long time to render the contents. However the subsequent requests which I don't track of, are much faster.<br>
  To confirm this, I created a standalone application which just has a <code>UIWebView</code>. This is the single line of code which I have added :  </p>
  
  <pre><code>[wkBrowser loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"https://www.yahoo.com"]]];
  </code></pre>
  
  <p>The result is same. It takes around <strong>15-20</strong> seconds to load the page. However on tapping any link on web page, it takes <strong>3-5</strong> seconds to load the next page. I did put the UIWebView delegate function didFailLoadWithError, but there is never an error.<br>
  <strong>Question</strong>:   </p>
  
  <ol>
  <li>Why is the first web request so slow ?</li>
  <li>How may I make it faster other than caching ?</li>
  </ol>