I've always felt 48 hours was too short when there are people halfway across the world who may need to defend themselves. When I had games going on less than 3 days people would usually never have a (majority) lynch done in time. From my experience, I like giving town enough time to come to a majority lynch (which after 3.5 days hasn't even come close to happening today
).
Also keep in mind, from my understanding, there are more players in this game than there were in earlier one, which justifies a bit more time than you're used to as well IMO.
Anyway, proceed with your lynchings...