The beat the song is built on is one bar, played through bars 34-39, 45-50 and 64-69, and 13 more places -- 30.2% 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 thirty-second notes. On its own it scores 70 out of 100 -- demanding -- and the thing that decides that is how many notes a second it asks for.
The whole song is 92 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 156 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 156, 184, 212 and 240 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 240 BPM, counted in thirty-second notes. It is written out above, and it covers 30.2% of the bars the kit plays.
Bars 34-39, 45-50, 64-69 and 72-77, and 12 more places. The time is kept on the ride to start with, and it changes 38 times over the song.
70 out of 100 on its own -- demanding. The song as a whole is 92 out of 100. Hard, and what makes it hard is how many notes a second it asks for.