I haven't disabled Nahimic Audio yet, but oddly enough everything seems to work fine.
Apart from the audio problem (which is software related) I have not had any problems with the hardware at all and in fact it is performing excellently and as good for me as Intel or Nvidia for example. Where Nvidia shines is certainly in the software department as I have never had a single problem even with the mentioned software installed.
I'm not sure how EQ APO works and what it does to provide the function it has, but it's the only software I can think of that directly interferes with the audio and could potentially be the reason for the problem or at least related.