I'm pretty sure you are not actually this naive and just like to be argumentative for the sake of being argumentative. That's kind of you're shtick, no?
This is an actual quote from person way more knowledgeable on the matter than you:
“It increases alertness, aggressiveness, attention and concentration. It improves reaction time, especially when fatigued. Some think it enhances hand-eye coordination. Some believe it increases the mental aspects of performance.”
That’s not to mention possible increases in acceleration, speed, strength and power that accrue to Adderall users. It’s no wonder that Wadler calls Adderall “one of the quintessential performance-enhancing drugs. There's no question it's a performance-enhancing drug.”