Most of the low end power complaints go back towards the Drive By Wire pedal response.
I know a lot of Toyota guys have 'fixed' this issue by installing a Pedal Commander or Pedal Box that changes the sensitivity of the throttle.
My Santa Fe Turbodiesel is 'tuned' with a box that changes the injector rail pressure reading to the ECU, reporting lower readouts so I get more fuel and better acceleration over stock.