I hear your love and concern for your daughter to be successful and happy. It sounds like she is already doing well academically (straight A's) and is respected/liked by her classmates. When she has only 13 classmates to choose from for friendship, I understand her reluctance to be viewed as a 'show off'. School is a social as well as an academic proving ground and she is savvy enough to be aware of this.

Your daughter sounds like a smart, good kid. You both have done well. I am not sure I see a burning problem but maybe someone else here will see it otherwise?