The beat the song is built on is one bar, played through bars 14-16, 18-20 and 22-24, and 8 more places -- 26.8% of every bar the kit plays. That is the spine of it; everything else is what happens around it.
It is played on hi-hat, snare and kick, counted in thirty-second notes. On its own it scores 89 out of 100 -- hard -- and the thing that decides that is how many notes a second it asks for.
The whole song is 100 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 80 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 80, 96, 112, 129 and 145 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 145 BPM, counted in thirty-second notes. It is written out above, and it covers 26.8% of the bars the kit plays.
Bars 14-16, 18-20, 22-24 and 66-68, and 7 more places. The time is kept on the silence to start with, and it changes 16 times over the song.
89 out of 100 on its own -- hard. The song as a whole is 100 out of 100. Hard, and what makes it hard is how many notes a second it asks for.