Minimum requirements for Android tablet

I was using a full version of Cross DJ with LG L65 (Dual-core processor, 1 GB RAM, Android 4.4) without any issues, but a 4.3 inch display is not sufficient to provide a comfortable work.
So I decided to install this app on my Asus Memo Pad HD 7 M173X (Quad-core processor, 1 GB RAM, Android 4.2). Despite the fact that this tablet meets requirements listed in Google Play store, the Cross DJ is useless on this device.
Going to the details I am able to use all controls, but the delays in setting loops, cue points or using sampler are so big, that it is impossible to mix two songs correctly.
I am very disappointed, because I love this app. But now I am wondering where is the issue? Could it be related to the Android version (4.2 vs 4.4)?
I even could buy a new tablet, but I would like to now what are the minimum requirements, which will provide that I will be able to use Cross DJ. Do you have any ideas?
Thank you in advance for any help.
So I decided to install this app on my Asus Memo Pad HD 7 M173X (Quad-core processor, 1 GB RAM, Android 4.2). Despite the fact that this tablet meets requirements listed in Google Play store, the Cross DJ is useless on this device.
Going to the details I am able to use all controls, but the delays in setting loops, cue points or using sampler are so big, that it is impossible to mix two songs correctly.
I am very disappointed, because I love this app. But now I am wondering where is the issue? Could it be related to the Android version (4.2 vs 4.4)?
I even could buy a new tablet, but I would like to now what are the minimum requirements, which will provide that I will be able to use Cross DJ. Do you have any ideas?
Thank you in advance for any help.