Does your car have the original factory tune?
There is a "reflash" that will help your situation.
Most refer to it as a "surge" if that's what you're feeling.
Here's the TSB that includes the reflash:
With that said, an aftermarket tune will run circles around that reflash.
Granted, you pay for it, but I also doubt that Ford will do their reflash for free either.
I also doubt you'll get it