Excuse me but are you the person using my iPad? I took my iPad to the Genius Bar a few times for this very reason. Ran diagnostics and said everything was fine. Yet I could open up a web page faster on my iPhone 4S, MB pro and my iphone 5 and my iPad would just hang there waiting to open page. Restored software, etc. nothing worked. Had to constantly power it down to get pages to open. iPad 3 was under powered with the A5x chip to run the retina display as I never had this issue with my iPad 2.
So unless you were in my home using my iPad and seeing the issues I encountered its really unfair of you to comment unnecessarily on the fact that I am happy to receive my new iPad.