220 to 270 BPM Double Bass Drumming (HD)

Hi there, I haven’t been able to play drums for 2 weeks and will be able to play again in one week only, but I managed to record this video in which I play along with the metronome some beats that are, most of the time, heard in Death Metal music. So, I played at different speeds between 220BPM and 270BPM. I can’t reach 280BPM. If Some one have some advice to give, it will be much appreciated. :) Should you have some question about the settings of pedals or of my drum module for triggering, I will be deli