Quit running autos if you want more consistent time frames. Just the way it is.
They say they are fastest way to get flower seed to harvest but that’s if you get lucky - some take 70 days to harvest, some take 120 days. And everything in between.
Genetics aren’t well refined yet in most autos.
Go with photo periods and you’re flowering times will be on point within a week of estimated by breeder (as long as you use a reputable breeder)