Ducklings- Time from Pip to Zip

I have 9 Rouen eggs that were set to hatch on Easter and just had one come out this morning. However, we saw the first pips back on Thursday night. Is it normal for them to take 72hrs+ to come out of the eggs? Some people say theirs come out nearly immediately while others say it takes days. Could it be that my humidity was slightly too high throughout incubation so they are extra chubby and can't move around too well in the eggs?

The incubator is in lockdown since Thursday and it's SOOOO tough to just sit and watch. I don't know if I can handle hatching ducks if it always takes them this long to come out

Not sure if it is "normal" but I have had some take that long to get out...mostly they were just late overall though, but definitely take longer than chicks to pip and zip....it is very hard to wait, better to have a solid door on your incubator for ducks!!

My Rouens took 2-3 days sometimes.

#2 just hatched! Thanks for the reassuring replies, guess it's just more of a waiting game then with chicks.