title: .Net2 assemblies hosted in .Net4 app perform better in x86 than in AnyCpu mode?
body: <p>I have a .Net4 WinForms app that references 3rd party .Net2 assemblies, which contain graphics-heavy visual controls. I've noticed a <strong>huge</strong> improvement in app's visual performance when I accidentally switched it from AnyCpu to x86 compilation mode. My development rig is a x64 Windows 7. The improvement is by a factor of at least two when controls are rendering their graphical elements.</p>
  
  <p>Is this a known fact or am I doing something wrong?</p>