Possible causes of poor acceleration in Audi A8

I have been experiencing some issues with the acceleration of my Audi A8. It feels like the car is struggling to pick up speed. What could be the possible causes?

One possible cause could be a clogged air filter. It is important to regularly check and replace the air filter to ensure proper air flow to the engine.

Another cause could be a faulty oxygen sensor. This sensor helps regulate the air-fuel mixture and a malfunctioning sensor can affect the acceleration.