We need more data.
What state do you live in?
How much lower are the SAT/ACT scores?
Do they offer a similar amount of classes?
What do you mean by “not suitable for me?” Where I live, I got one choice for where to go to for public high school (meaning I had to deal with any problems I had), so is the school really that bad?
What colleges are you considering? T50 Uni/LAC? T30 Uni/LAC? T20 Uni/LAC?