Why is the Audi A7's acceleration lacking compared to other luxury cars?

I recently test drove the Audi A7 and noticed that its acceleration was not as powerful as other luxury cars in its class. Is there a specific reason for this and is there anything I can do to improve it?

The Audi A7 does have a slightly lower horsepower compared to other luxury cars, which could contribute to the lack of acceleration. However, keep in mind that the A7 is also heavier due to its spacious interior and advanced technology features.