I got the problem. When I play 5-6 samples-loops simultaneously, using the external MIDI sequencer, there's a little delay between these samples. They are not perfectly in time. It's like the samples start to play not at one moment of time, but with a little time shift. As a MIDI sequencer I use an iPad with iRig MIDI. I tried different software - Genome, Cubasis - it's this annoying delay everywhere.
Could you help me with this? It's really irritating...