title: Slow load image from button Tool after event Mouse hover and leave in VB.net
body: <p>Sorry for my English writing
  I am new with VB.Net. I have a button that sets an image background as picture using the Mouse Hover and Mouse Leave to change the image . The Problem is that it seem slow when loading the images after the event. Is there any way to improve the performance? </p>
  
  <pre><code>Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
      Button1.BackgroundImage = My.Resources._1 
  End Sub
  
  Private Sub Button1_MouseHover(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.MouseHover
      Button1.BackgroundImage = My.Resources._2
  End Sub
  
  Private Sub Button1_MouseLeave(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.MouseLeave
      Button1.BackgroundImage = My.Resources._1
  End Sub
  </code></pre>