This is a song by Bob Marley, this versions seems easier to sample, but it just sounds off tempo, I found the bpm to be
45 bpm/90 bpm but its just annoying, It doesn't sound right, It was sampled before by Sunz of Man on their track Illusions
Music played by human beings isnt at one set tempo, there can be small variations that make a big difference to the overall tempo. The more this is a problem, the more chops you need to make to keep it tight. Or use software that can warp the audio.