I've spent about 30 hours playing with this mod with multiple different playthroughs. Each time my era ends really quickly and sure enough me and the rest of the civs are still only about 10 percent into the the era which is already ending, i can tell from checking the tech tree. Im not sure if this is just me but ive seen a few people complaining about it happening, its happening to me before I even complete the first tech in that era. Ive done some tweaking to the techs and eras before and discovered that simply making the maximum turns per era 1000 has fixed the issue because the game automatically moves to the next era after a certain amount of civs have reached the end of it. At least im pretty sure it works this way. Ive updated this mod with maximum turn limits very high for each era to see if it fixes it but its an issue ive been able to recreate again and again.