My experience comes in at a little slower than that in general - on this I'm getting about 10 minutes of output for every hour of editing, but it's an acceptable price for a show to have production values ( not high
production values admittedly
) and it seems to be gradually building up listening.
I think the most likely cause is definitely the person who has the tracking problem just running into trouble on their PC. I hadn't realised that could happen, but it makes sense that it might if it is trying to run Audacity, Hangouts and Roll20 while also being a somewhat antique PC.