HD60 Pro stuttering / Popping capture audio

Hey guys, recently I have found that regardless of what device I'm capturing from I get terrible audio from the capture. I run a streaming PC setup with the capture card and depending on what I stream either a Gaming PC or the PS4 is linked up. In both cases the picture seems fine but the audio is choppy and stutters.

Testing the audio via the HDMI out connection from the HD60 pro the sound is crystal clear, but the x-split output has the popping and is bad on stream or while previewing.

I have tested with GameCapture and with OBS with the exact same results. Here is an example:

https://www.twitch.tv/daftbrit/v/69378663

This example is from the PS4 but I get similar issues with PC. Its only a short clip and is minor compared most other instances but it was the best example I could find where I wasn't talking through the issues.

Its very noticeable during action sequences, Dreadnought on the PC was terrible for it.

I'm running the latest version of the drivers and the GameCapture software and primarily capturing in x-split although the issue is replicated in OBS studio. Any help would be great.