bpm analization

the BPM engine needs some work, it does not hear the First beat as do Traktor OR VDJ, this means that the bpm is off OR to Fast, PCDJ has the BEST BPM engine I've found in all the programs,

Also can you add the ability to batch edit songs, ex: song A has a analyzed bpm of 138 but song A's real bpm is 79. there should be a way to select those songs right click and 1/2 bpm those songs