Loading problem

Hello,

i have a problem with my XDJ RX 2. Since i updated to the newest Firmware (1.3) and updated Rekordbox my controller got really slow. It got so bad I had to hard reset while on stage. (Just kept on loading)

When I use my lagre Playlist it used to load it in an instant. But now it takes some seconds and gets slower and slower up to 2 minutes. 

Here is an example: 

https://drive.google.com/file/d/1kHsaSpy7LyFRFEaoyINUUrZ5iXLHdk8Y/view?usp=sharing