Healing a person doesn't restore the 100%, his body was still in pain cause he wasn't adjusted to his MS and he was a mess. Seems like you don't remember Danzo has been experimented on and barely uses any of his original techniques other then his summons and wind style, he spams one jutsu more then Sasuke from a clan he wasn't born into, that seems relevant to me. But you like you who like, whether he's a walking experiment or not lel.Seems you don't remember Tobi telling Karin to heal Sasuke before he spoke to the Kages about Tsuki no Me.
But that's irrelevant anyway. Danzō humiliated Shisui with one arm and we all know it.
OT: He got Shisui, but it was herb move. U_U