The beat the song is built on is one bar, played through bars 1-3, 16-30 and 32-37, and 19 more places -- 59.7% of every bar the kit plays. Learn that one and most of the song is already under your hands.
It is played on hi-hat, snare and kick, counted in sixteenth notes. On its own it scores 69 out of 100 -- demanding -- and the thing that decides that is how many notes a second it asks for.
The whole song is 81 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 98 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 98, 115, 133 and 150 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 hi-hat, snare and kick, in 4/4 at 150 BPM, counted in sixteenth notes. It is written out above, and it covers 59.7% of the bars the kit plays.
Bars 1-3, 16-30, 32-37 and 40-63, and 18 more places.
69 out of 100 on its own -- demanding. The song as a whole is 81 out of 100. Hard, and what makes it hard is how many notes a second it asks for.