Nah he is not. Kaidou probably likes testing himself, to not get bore. This seemingly is a problm with some of the Top Tiers, Mihawk included.
Hence he executed the Orochii Grandma, since he couldn't test himself against Oden because of her. That's why he was going to crash MF.
Then crashed the SNs, thinking they might amuse him. Then later on head on to face Luffy n Law for same, bt was Dissappointed with each of em.