I am creating an application that is a little heavy for graphics, and it works with a poor frame rate on iPhone 4, but works fine on 4S and 5. Is there a way to choose not to support 4 before?

I saw applications that say that this will not work in the description, but is there a way to stop people from downloading it if on 4S and above?

EDIT:

My application was rejected for using Bluetooth-Le.