How to maintain the performance of an Audi's engine?

I have noticed that my Audi's engine is not performing as well as it used to. What measures can I take to maintain its performance?

Regularly change the engine oil and filter. This will ensure that the engine runs smoothly and efficiently, and prevents any long-term damage.

Avoid harsh driving habits such as rapid acceleration and braking, as this can put strain on the engine and decrease performance.