Review Detail of Chouzenfox in One Piece Starting with Uchiha Itachi's Template

I feel my brain cells dying with every chapter I read. He receives all powers, training and battle memories, including muscle memories from when Itachi Uchiha was at his peak, receives a power that doubles this general power and gives him the Eternal Mangekyo Sharingan, and still receives 5% more power on top of all that. In every fight I've seen, Itachi's powers have been reduced to fireballs, shurikens, swordsmanship and Amaterazu. With all that power he manages to fight Smoker and only wins because he releases Amaterazu non-stop on him to the point where he himself admits "If I didn't have the EMS I would be blind or at least seeing everything cloudy".