I'm trying to figure out why the example, "Complex Dashboard" @ http://dev.sencha.com/deploy/ext-4.0...Dashboard.html is so slow in IE9. In chrome its fine, but IE9, is constantly bogged down, and there is a noticeable delay before the table or graph recognizes that I've moused over them.
Is this just an implementation issue, like bad coding or a faulty design causing so much lag for IE9? Could it have been written differently to perform better?
I also tried the same example in the 4.1 preview and I didn't see any performance gains.
I also have a quick screen capture of IE9 having trouble with this example, http://screencast.com/t/TbfDmbyNW