title: fragment to fragment transaction is slow
body: <p>I have one <code>fragment</code> with <code>ListView</code> at left side of Screen...
  whenever user clicks on any item of <code>ListView</code> i show <code>fragment</code> at right side ..</p>
  
  <p>Below is how I am using transaction:</p>
  
  <pre><code>FragmentManager fragmentManager = getFragmentManager();
  FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
  SiteDetailsFragmentActivity fragment = new SiteDetailsFragmentActivity();
  fragment.setArguments(args);
  fragmentTransaction.replace(R.id.fragment1, fragment);
  fragmentTransaction.commit();
  </code></pre>
  
  <p>Why ds transaction is slow?</p>