I've noticed a lack of power/hesitation when I accelerate to pass a car or just speed up. I hit the gas and it's like I did nothing. I can let off the gas and hit it again harder to force a down shift and it does fine. Is it just in a weird RPM with no turbo boost or maybe a trans shift issue? It's a 2015 LTZ RS 1.4T auto with 26k miles, and it's not throwing any codes.