Why is the acceleration on my Audi A4 sluggish?

I have noticed that the acceleration on my Audi A4 has been quite slow in comparison to when I first bought the car. This has been occurring for the past month and I am concerned about potential issues. Any insights would be greatly appreciated.

Your Audi A4 may be experiencing sluggish acceleration due to a clogged air filter, which restricts airflow to the engine and reduces its power. Try replacing the air filter and see if that improves the acceleration. It is also a good idea to get a tune-up if you haven't had one recently.

Another possible cause of sluggish acceleration could be a malfunctioning throttle position sensor. This sensor controls how much fuel is sent to the engine and if it is not functioning correctly, it can result in reduced power and slower acceleration. Have a mechanic check the sensor to see if it needs to be replaced.