The beat the song is built on is one bar, played through bars 24-25, 27-29 and 31-47, and 7 more places -- 33.3% of every bar the kit plays. That is the spine of it; everything else is what happens around it.
It is played on crash, hi-hat, snare and kick, counted in sixteenth notes. On its own it scores 64 out of 100 -- a step up -- and the thing that decides that is how many notes a second it asks for.
The whole song is 77 out of 100, so the beat is not the hard part: what costs you is everything around it, the joins and the fills.
A part this hard is not learned by playing it slowly and hoping. The room opens it on its simplest reduction -- the timekeeper alone, at 104 BPM -- and adds the notes back over 4 rungs, each with a tempo to reach and a gate to pass before the next.
Tempo goes 104, 123, 141 and 160 BPM, and the gate at each one is 8 loops in a row with no wrong note and no wobble in the time.
PRACTISE THIS BEAT →A one-bar groove on crash, hi-hat, snare and kick, in 4/4 at 160 BPM, counted in sixteenth notes. It is written out above, and it covers 33.3% of the bars the kit plays.
Bars 24-25, 27-29, 31-47 and 52, and 6 more places. The time is kept on the hi-hat to start with, and it changes 11 times over the song.
64 out of 100 on its own -- a step up. The song as a whole is 77 out of 100: demanding, mostly on the independence between the hands and the feet.