What is the cause of poor acceleration in Audi 80?

I have noticed that my Audi 80 has been experiencing sluggish acceleration lately. Despite regular maintenance and tune-ups, the issue persists. What could be causing this and what steps can I take to improve it?

The most common cause of poor acceleration in Audi 80 is a clogged or dirty air filter. It is important to regularly replace or clean your air filter to ensure proper airflow to the engine. I recommend checking your air filter and replacing it if necessary.