eminem has the same flow on all his new songs i feel. i mean, it's an impressive flow, for sure. fast paced, intense, aggressive, and he fits most his syllables together in a way that demonstrates he has an excellent understanding of the science of words. but his actual intent, message, and subject matter is lost behind bizarre abstract "punchlines" (in quotes because half of them aren't funny or even really particularly clever) and inane statements that are only there because they sound good. and he even writes his shit down - unlike wayne - so there really isn't any excuse for throwaway lines that serve no deeper purpose than "this is a good rhyme scheme".
his verse on drop the world is a perfect example of this, as well as forever. his verse on airplanes actually has some decent subject matter though, because he's talking about a bunch of personal shit (like he used to (when he was good)), but even then he's still pretty blatantly prioritizing flow over lyrics because it's that same fast/loud/angry bit he does on all his new shit.
in short: em is played out, free weezy