title: Java FX performance issue
body: <p>We are having a complex Java FX application will lot of screens. As we navigate through the application at a point in time the application runs out of memory. Is there a way to remove the components created in a scene before we proceed to the next scene. 
  Does the idea of removing the components from the scene which is no longer used, improve the performance ?</p>
  
  <p>I see that there is no straight forward way of removing the elements in a scene ?</p>
  
  <p>Can anyone please suggest a way to tune the slowness and out of memory issues in java fx applications ?</p>