I had just gotten the Diablo i2 for my 2011 ford ecoboost I have it on the fuel eco my tune and it is great but when I go to accelerate hard it starts hesitating and looses power I have done replace sparkplugs and coil

I just got my Diablo i2 and I have the tire size set But when I get down on the accelerator it tends to hesitate. I have it in the fuel economy tune