You do have a point.Wow I guess you people do really underestimate pain. You're forgetting he's already fought 2 very fast shinobis and didnt get speed blitzed.Infact he was winning till Itachi stepped in.
The Raikages are a bad match for Pain cos the source of all their power (lightning armor) can easily be absorbed. And the 3rd Raikage's durability wont save him from having his soul ripped out.