Conor may be good at MMA but he isn't in boxing. He must have forgot that Floyd is one hell of a fast guy and can decide to engage quickly and move out swiftly like he always did to most of his fights. Its a cowardly move but definitely a style of his own.
You can say that Conor is not geat at boxing only because he never fought a boxing match in his entire career but that does not mean that he does not box,Floyd might be faster in the past but now he is forty years of age and it will slow down everyone and Mayweather is no exception,just a few more days and then we will know about it.