Dude its a space fantasy franchise where every other character has magic powers, there's magic ghosts, soldiers use bulky armor that seems to offer no protection whatsoever, robots cough, there's sound in space, firearms have devlolved to shoot slow as fuck laser beams that travel at a fraction of the speed of a bullet, people die because they are sad, Samuel L Jackson doesn't swear and being on a slightly higher ground is apparently the ultimate triumph card.
It's not that crazy to imagine that maybe the Joda race doesn't develop in a linear way. Maybe from 1 to 80 they are super slow to develop but then from 80 to 160 their development grows at an exponential rate so that by 200 they are fully grown adults....or something like that