The beat the song is built on is one bar, played through bars 13, 15-17 and 19, and 19 more places -- 28.6% of every bar the kit plays. That is the spine of it; everything else is what happens around it.
It is played on crash, snare and kick, counted in sixteenth notes. On its own it scores 13 out of 100 -- straightforward -- and the thing that decides that is the independence between the hands and the feet.
The whole song is 69 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 120 BPM -- and adds the notes back over 3 rungs, each with a tempo to reach and a gate to pass before the next.
Tempo goes 120, 140 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, snare and kick, in 4/4 at 160 BPM, counted in sixteenth notes. It is written out above, and it covers 28.6% of the bars the kit plays.
Bars 13, 15-17, 19 and 21, and 18 more places. The time is kept on the kick and crashes to start with, and it changes 6 times over the song.
13 out of 100 on its own -- straightforward. The song as a whole is 69 out of 100: demanding, mostly on the independence between the hands and the feet.