Was she on the smaller size at a year? Yes but it’s not something I would worry about as she looks good. I have said it before and I will just copy and paste from a previous post, a lot comes into play.
She will be just fine and will catch up keep in mind that they are also not all programmed to be 3000/4000 grams animals and some will max out at 2000/2500 grams
Pay less attention to weight and more to body proportion, weight can vary greatly from single to double and a lot comes into play
Weight when they hatch the average while being 55/75 grams does not mean they all weigh that, 40 grams or even 90 grams are not uncommon and obviously those animal would not get started the same way either.
Pre size.
Feeding frequency.
How fast they get started, some will eat the next day after their first shed some may take up to 6 weeks
Skip meals, fast.
Genetics, some are predisposed to be bigger.
So don’t try to compare the size of your snake with others just make sure you are feeding it appropriately and make sure it has good proportions.