Really, be thankful for the hours being lower right now. I have seen gyms with lower hours do better than gyms with mega hours. It is all in what they get done during practice and how much they focus on all the little things in a routine. My daughter did 10 hours a week for the past 2 years, at age 6 she had an okay year, mostly because the gym she was at had too many coaching changes and very inconsistent coaching. This past year, she still did 10 hours and did great. All while still having plenty of time for other things. Pretty soon, there isn't much choice with how many hours they do, it goes up if they stay in the sport. Enjoy the lower hours/level while you can. Even 14 hours for my 7 year old (who turns 8 in the summer) seems like too much to me.
All that to say, more isn't necessarily better! Too much stress at level 4, which is meant to be an introduction and fun, can lead to girls burning out before they even get a chance to enjoy gymnastics! It is easy to get sucked in and want it all at the beginning. You will hear it here over and over, gymnastics is a marathon, not a sprint.