I am working on a MVC4 RC application within the Visual Studio 2012 RC. I started to notice my web pages were starting to get a bit sluggish with regard to response times. I found that I could not get any page to return in less than 1 second. So I stated to do a bit of digging â€“ I created a TestController controller with a single Index() action and a view which did not use any master page/layout. The page, according to FireBug was 2-3ms coming from IISExpress running on my local dev machine. Now the view was a very simple page with a DocType, header, and body without any content so this is about as basic as you can get.