Why shouldn't i decrease the latency ?

Why shouldn’t i decrease the latency ?

Hi, i mix on the S4. on this video of ean golden

he says that for djing, the latency shouldn’t be to low.
Why ?
i mean what could go wrong ?

If it’s too low, you get glitches and audio dropouts. You want it as low as your computer can handle, but not TOO low.

Oh ok !
well thanks dude