DDJ 1000 - 10/20 second pauses when scrolling down the playlist and random times. Music continues to play its just when you want to scroll and select the next song or sometimes its just random with the lovely blue circle.

Windows 8.1

Intel Core i3-5010 CPU @ 2.10Ghz

8G Ram

64-bit operating system.

All updated driver, firmware & windows.

Controller DDJ 1000 performance mode.

I have 2 internal drives. Running system is on a SSD drive & the program.

Music is on a normal internal drive.

Problem:-

1. Main problem.

Pauses after 2 or 3 pages when scrolling up or down my playlist and random times. You see the lovely blue circle yet the music continues to play.

2 - I will never delete a track while i'm in work because it takes forever to delete.

3 - I know theirs a quick method on the mac but is their a way in windows to select multiple songs and to then half or double the bpm, at the moment i have to re analyse each track. 

Thanks Naz