Reply to Bad Sound quality audio4dj . HELP!H

Hey guys.
So i got a new computer, a Asus N56VM and i loved it!
So, i installed traktor duo with my audio4dj on my new laptop to start djing with my vinyl's, but the output sound is really bad :s ASIO4ALL is already installed, i thought the problem was Windows8 so i tryed in my other computer (that has w8 too), and...... cool sound.

So, maybe its problem of the usb ports ? i dont understand if this have 2.0 and 3.0 ports or JUST 3.0 .


I dont mix for 2 weeks and im becoming crazy ! the other computer isn't just mine so i need to use the laptop to mix