Early Decision

Ever since the end of my Junior year I knew that I wanted to go to Santa Clara. So I decided to apply early decision. I have a high GPA and am very involved in my community. My dilemma is that I have a slight touch of ADD and executive functioning which impairs my ability to perform well on tests such as the SAT and ACT. My question is: Do you think since I am applying early decision the admissions counselors will look more into my achievements and see my interest? Or will my test scores affect their decision just as much?