DDJ-RX and Rekordbox 5.2.2 audio dropout´s and glitches

Hi!

i got problem with DDJ-RX and Rekordbox 5.2.2. 

Problem is that i have glitches and audio will stop about 1 second or less, whats the problem?

i tryd rise up buffer size to 2000 , but then its slow and reflex is very slow. i tryd 1024 samples, but glitches are same.. :(

i have PC and i bought new USB cable "Chroma" , better but problem exists still.

My PC system recruitments:

Processor..Intel(R) Core(TM) i7-8550U CPU @1.80GHz 1.99GHZ

64-bit Operation System, x64-based processor, 4 cores

8 GP RAM

4 GP Graphic Nvidia

Win 10