audio video sync

I'm having an issue where my audio and video are lagging behind one another, usually, the audio lags behind the video. This is when doing a Skype call via NDI. Does anyone have any suggestions on how to remedy or what settings I can try looking at.

I've been trying and failing to sync all my audio (specifically outputs) and video for the past few days. I understand that it's impossible to sync everything 100% (as I'm not using something like Jack Audio that would actually sync the clocks of all these devices), but I'm not even able to keep...