The beat the song is built on is a 2-bar phrase, played through bars 6-20, 22-24 and 26-28, and 10 more places -- 56.3% of every bar the kit plays. Learn that one and most of the song is already under your hands.
It is played on crash, hi-hat, snare and kick, counted in sixteenth notes. On its own it scores 78 out of 100 -- demanding -- and the thing that decides that is how many notes a second it asks for.
The whole song is 88 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 75 BPM -- and adds the notes back over 5 rungs, each with a tempo to reach and a gate to pass before the next.
Tempo goes 75, 90, 105, 121 and 136 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 2-bar phrase on crash, hi-hat, snare and kick, in 4/4 at 136 BPM, counted in sixteenth notes. It is written out above, and it covers 56.3% of the bars the kit plays.
Bars 6-20, 22-24, 26-28 and 30-35, and 9 more places. The time is kept on the silence to start with, and it changes 10 times over the song.
78 out of 100 on its own -- demanding. The song as a whole is 88 out of 100. Hard, and what makes it hard is the independence between the hands and the feet.