title: TextBlock Vs ContentControl in performance in XAML
body: <p>I have a section header which contains two words to be displayed in XAML with a little bit of style with fontsize and fontfamily. I can implement this with <strong>TextBlock</strong> or <strong>ContentControl</strong> (by setting the <strong>content</strong> property to the header text). </p>
  
  <p>The <strong>TextBlock</strong> is not derived from <strong>Control</strong>, so is the intent of TextBlock to perform better in XAML for text compared to a contentcontrol? </p>