title: Synchronize WPF MediaElement Video with second window
body: <p>I'm playing a video with the WPF MediaElement and OnButton Click it opens a second window (I move it with Screens.AllScreens[1] to my second monitor). 
  On second window I've created a new instance of mediaelement and put the value from mediaelement1.position to mediaelemnt2.position.
  Now I have a one second delay in my second window :(.</p>
  
  <p>Is there a way to handle this?</p>
  
  <p>Thanks for help</p>