Reply to Traktor 2.6 on Mac OS CPU Overload

Hy pals, i bought yesterday a macbook pro core i5 4gb ddr3 for avoid the cpu overload
problems that i used to have with my another pc, but it's not as fast as i want, the cpu
load is always at half and when i load a track into a deck, i have a minimal screen lag,
i've seen some other macs with traktor also older macs and it worked better than mine,
it sounds good but i believe it should be faster, it's a traktor 2.6 problem or what do you believe?

Thanks for your answers!