The beat the song is built on is one bar, played through bars 9-16, 19-73 and 75-106, and 5 more places -- 81.9% of every bar the kit plays. Learn that one and the song is very nearly finished.
It is played on ride, snare and kick, counted in sixteenth notes. On its own it scores 81 out of 100 -- hard -- and the thing that decides that is how many notes a second it asks for.
The whole song is 92 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 ride, snare and kick, in 4/4 at 175 BPM, counted in sixteenth notes. It is written out above, and it covers 81.9% of the bars the kit plays.
Bars 9-16, 19-73, 75-106 and 108-122, and 4 more places. The time is kept on the snare to start with, and it changes 6 times over the song.
81 out of 100 on its own -- hard. The song as a whole is 92 out of 100. Hard, and what makes it hard is how many notes a second it asks for.