DJM-REC pitch problem

Dear all,

I had recorded my set last Sunday via:

DJM-900nxs2 firmware 2.07

CDJ-2000nxs2 X2, firmware 1.85

Iphone Xs 13.5.1, 

DJM-REC 1.2.6.5

file m4a, AAC 320kbs.

Issue is that pitch in recorded set is constantly changing. 

It was 4 hour set and started at 125 and ended 127,5 bpm.

In the set from song to a song it's very slow, and some songs gets faster and some slower like 120 bpm.

Is there any way to fix this or make it sound like it was sounded at the party?

I can also provide you with the file so you know what I am talking about.

Thanks