one guy did his character leveling up to level 100 in just 15 hours, that sucks, i think need to adjust the amount of experience gain to get to 100 need about 1 week for experienced people experience and more time will be more reasonable
https://www.youtube.com/watch?v=QVPg_dwd4Dc&ab_channel=Rob2628

Can't reset the dungeon and use the same OP maps over and over now so I doubt this could be done in 15 hours now. Still pretty easy to get to level 100 though... nothing like D2R :]

once i hit 100 on my first one my motivation died. I have several around 65-85 but i just cannot lvl them