Until now I played only the first one and I think it was in 45-1h mark also. I died few times but it was next to HW so go back time was not significant.
Does ship cap setting affect this in some way? I'm playing on Ultra low.
I think I found the issue. I normally play on Epic, but I swapped it over to blitz and a nebula was done in about 30 minutes, and it only took less then a minute for the first damage to a starbase. Rather then the 15 minutes I had been seeing before.
At normal, things flowed quite evenly. I put it back to epic and things were crawling and I got back to the 2-4 hour mark for nebulas.
I think we should have nebula ignore speed options and run at a constant rate( Normal ) for nebulas, as I can tell you that Epic game play is what I like outside of nebula, but inside nebula they are quite literally there own game at several hours per nebula. Things just crawl and make me want to run it at +10, were as outside of them there is plenty to do to fill normal time.
Certainly not what I think was intended with the side missions.