If you search a little, you will see that every time someone asks this question they get the same unhelpful answers. "what is the big deal needing 2 feet down" "Dont lower it or you will die/bad handling/etc" and other regurgitated answers that people have read elsewhere and just spew to fit in.
She can do the following:
shave the seat (gain 1/2" to 2") depending on the seat
lower the bike (front and back with a lowering kit/drop front forks) and or get a lowering spring for the shock (hyperpro for example sells front and rear lowering springs)
get motorcycle boots and buy a set of $10 inserts to give her 2" or more
GO to a shoe repair store and have them add height to the sole of the boot
get a slightly lower profile tire (gain about 1/2")