I was also a very playful and active child, I still am very playful and active now too as an adult, though I can put down boundaries for myself when this is necessary.
I liked to play a lot until I got into my early teens, then I could still be very active and still enjoy doing certain games or other fun things, but in a different way than how I was during my childhood.
I remember my mother and older sister told me when I was 11 that I was too big for playing with barbiedolls as well as watching kids tvshow, as I still enjoyed doing this at this age. There were others my age who didn't do this anymore.
Being a child is a very precious time of life which doesn't last as long as when becoming an adult, it should be enjoyed! As once you reach adulthood there will be put a lot more responsibilitites over you, as well as worries of life will get to you, and so on. A child is supposed to live a worriless life, not having too many responsibilities put over on them.
Just let her be a child now, and she will gradually change when she grows older. Let her enjoy the time she is given as a child now.