title: Application, improve performance of touch events
body: <p>Basically, I have an application witch is 8000px by 8000px.  We can zoom in to view a specific part, example on the radio, or we can zoom out to view everything. </p>
  
  <p>Each part of the car is a control that we can manipulate with fingers, on a dual touch or multitouch monitor.</p>
  
  <p>My problem is: for manipulating a control, for example the Volume button, the user needs to move the mouse exactly like in real life, so with a circular movement. 
  With the mouse everything is perfect, it responds instantly without any delay. I use the OnMouseLeftButtonDown, OnMouseMove, etc.
  With the touch, it seems to be very difficult for the computer to get the touch position and there is a huge lag, especially when the user move 2 different button with 2 fingers at the same time. I use the OnTouchDown, OnTouchMove, etc...</p>
  
  <p>The only difference between the mouse and the touch is when we need to get the position, with the Mouse I use: (e is a MouseButtonEventArgs)</p>
  
  <pre><code>Point currentPosition = e.GetPosition(this);
  </code></pre>
  
  <p>With the Touch I use: (e is a TouchEventArgs)</p>
  
  <pre><code>Point currentPosition = e.GetTouchPoint(this).Position;
  </code></pre>
  
  <p>Everything after this is the same.</p>
  
  <p>I don't know if it's because I have too many control in the my application (over 5000 that we can manipulate, but when we zoom in on only 2 control it's the same thing) or because it is really difficult for the computer to get the position from a touch event....</p>
  
  <p>Can someone help me with this? I need to find a solution to eliminate the lag.</p>
  
  <p>I use Visual Studio 2010, Blend 4, .NET 4.0
  Windows 7 64-bit
  7 Gb RAM
  Xeon 2.13 Ghz, 2 core, 8 thread
  Screen: ELO technology, in a NEC 2490WUXi2 screen</p>