Based on your post, I agree that she should speak with her guidance counselor. At my kids school, 6 AP’s aren’t even possible in a single year. This is a highly rigorous school where 100% go on to college and has a very low acceptance rate( less than 20%). So, are the regular classes really easy? Is there anyone else taking 6 AP classes? In our area, the local high school which is highly rated and has about 10-15% acceptance Ivy or MIT type, kids would take maybe 4 AP classes and that would be someone who does no EC’s and/or no sports. Perhaps, your school is really good and they just don’t give much homework. But here, an AP class is a minimum of 1 hour per day. I guess schools are really different and states are really different.
Also, the social science offerings look great and way more interesting. She could build a good story by focusing on a specific aspect of that subject which she plans to pursue.