The super trap being more efficent I would think you might need to add some fuel in the TuneECU map go to the F trim highlight the area you think it is lagging in and add say 5% to start with and see if it improves "Trial and Error my freind... Trial and Error" making small changes the risk of doing harm is next to none. I you decide to go for a PCV + AT your problems will be solved Quickly but still run the TuneEcu tune as your base tune
I would think you might need to add some fuel in the TuneECU map go to the F trim highlight the area you think it is lagging in and add say 5% to start with and see if it improves