Virtual DJ LE is the worst

I bought a DDJ Ergo yesterday and had install the Virtual DJ LE. Everything works normally in my MacBook Pro 13" i7, except that software related. A lot of delays and noises comes when i mixing two tracks. The sound is horrible, the gain command not responding properly and now, the program frooze my computer that a need to restart it. Maybe in full version, "Pro" (who knows?), this problems not occur, but to upgrade it, its about $150,00 with discount offer to Pionner. To buy a Traktor Pro 2, the cost is $84,00. The choose is easy, didn't is? Im asking for Pioneer to keep the quality in your products avoiding this problems. Sorry about my english. Thank you.