Crackling sounds – AUM - Audio Mixer Review

Bought the app like a week ago. I have 6 channels in total with some effects added in 1 or 2 channels. There are crackling sounds time and again which causes some lag between the channels’ tracks in the final mix. Please fix it. Or is it only on my iPad mini 5 that is not able to handle the throttle?? I’m running iOS 13.6.1. DSP shows above 50 and goes up to 128 when the crackling happens.
Review by Roman Raj Bajracharya on AUM - Audio Mixer.