BPM value is fine. Music has downbeat according to 270 BPM. Notes just don't align with individual sounds in the music. Improvised notes too much in my opinion. BPM should be 270BPM, note should be 1/2.. maybe occasional 1/4th triplets for emphasis (even that is improvising but a little bit is okay)
This is pretty subjective though, 90% of my maps have very high vocal improv & none of the lower bpm ones get called farm. It's just my style of mapping