The beat the song is built on is one bar, played through bars 15-23, 26 and 28, and 19 more places -- 64.7% of every bar the kit plays. Learn that one and the song is very nearly finished.
It is played on hi-hat, snare and kick, counted in thirty-second notes. On its own it scores 73 out of 100 -- demanding -- and the thing that decides that is how many notes a second it asks for.
The whole song is 83 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 96 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 96, 116, 136, 155 and 175 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 175 BPM, counted in thirty-second notes. It is written out above, and it covers 64.7% of the bars the kit plays.
Bars 15-23, 26, 28 and 30, and 18 more places. The time is kept on the snare to start with, and it changes 8 times over the song.
73 out of 100 on its own -- demanding. The song as a whole is 83 out of 100. Hard, and what makes it hard is the independence between the hands and the feet.