title: Slow startup of xamarin app
body: <p>We are developing a cross platform app on a PCL, but for the time being we are only using android devices for testing.<br>
  Our concern is that its taking about 6 to 8 seconds (depending on which device we test it) to start the app, which is very slow.<br>
  After placing a few breakpoints we saw that the timing is consumed pretty evenly.<br>
  We did notice this particular parts took longer:</p>
  
  <ul>
  <li>1s before reaching onCreate() on MainActivity (there's a splash screen before which only has one image and a background color)  </li>
  <li>1s on <code>base.OnCreate(bundle);</code>   </li>
  <li>1s on <code>global::Xamarin.Forms.Forms.Init(this, bundle);</code>  </li>
  <li>1.5s on <code>Page mainPage = new LogScreen();</code> (creating the main page to then set it as main navigation page).</li>
  </ul>