title: EmguCV very bad performance when querying high resolution Frames
body: <p>I am using EmguCV to query frames sequentially from a capture that I defined as following:</p>
  
  <pre><code>Capture cap;
  private void Form1_Load(object sender, EventArgs e)
  {
      cap = new Capture();
      cap.SetCaptureProperty(Emgu.CV.CvEnum.CAP_PROP.CV_CAP_PROP_FRAME_WIDTH, 1280);
      cap.SetCaptureProperty(Emgu.CV.CvEnum.CAP_PROP.CV_CAP_PROP_FRAME_HEIGHT, 720);
      timer1.Interval = 20;
      timer1.Start();
  }
  private void timer1_Tick(object sender, EventArgs e)
  {
      Image&lt;Bgr, byte&gt; img = cap.QueryFrame();
      pictureBox1.Image = img.Bitmap;
  }
  </code></pre>
  
  <p>and then I make some operations like tracking objects, but it's have very bad performance i mean every about 200 ms I get new frame when removing the lines 5,6 that set the width, height i get very good performance...</p>
  
  <p>my question how can i get good performance...</p>