Latency in Dell Inspiron i7359-8404SLV.

I bought this laptop. 

didn't install anything but the original Win 10.

Run latency check and got values more than 1000. With make sound to "stuck" from time to time. (see picture)

I intend to use it as a DJ computer.

Is anyone knows how can I lower the latency.

I took the laptop to Dell laboratory but they told me all HW are working fine , and it's not their problem.

Thank you,

Hanan