Why is the acceleration in my Audi A8 slower than usual?

I noticed that the acceleration in my Audi A8 has decreased recently. What could be causing this issue and how can I fix it?

Have you checked your air filter? A dirty air filter can restrict airflow and reduce engine power. Try replacing the air filter and see if it improves the acceleration.

Another possibility is a clogged fuel filter. A clogged fuel filter can restrict fuel flow and decrease engine power. Consider replacing the fuel filter as well.