There are a lot of factors that affect time and level of change, certainly key one is age and your given Endocrine system.... I guess, although see categorically, that metabolism will have an affect on body fat change... However bear in mind that for CIS females that hormones take a fair few years to build and develop waist, hips and boobs... check out the Tanner scale... even when you hit stage 5 around mid teens, the body shape continues to change till late teens and early twenties.
Some girls here have had fast changes, especially when younger, others, like me the changes, overall have taken much longer, age, type of hormone delivery methods and family genes etc... play a part.
As far as body mass at the top end goes, this does depend on your body structure and how long T has been playing around with our delicate bodies...
Can't give you specifics, but hope it helps

?
L Katy