Scratching problems on the Pioneer DDJ-SX2

Hello, good evening:

I've got a problem scratching. I have my jog wheel sensitivity to the most sensitive and my latency to the smallest possible on Serato DJ (among other tweaks) and when I'm playing a track and try to scratch It sounds like it slips.

I'm talking about the response and accuracy from your hand movements to the response you get in sound.

Any idea about that?

Thanks in advance.