Why is my Audi A1's engine performance slowing down?

I've had my Audi A1 for 3 years now and recently I've noticed that the engine's power seems to have decreased. I've been taking it for regular maintenance and oil changes, so I'm not sure what's causing this decrease in performance. Can you provide some insight and advice?

It's possible that your engine might be experiencing a build-up of carbon deposits, which can restrict airflow and reduce performance. I recommend using a fuel additive or getting a carbon cleaning service to help remove these deposits.

Another potential reason could be a clogged air filter. Over time, the air filter can become dirty and blocked, resulting in reduced air flow to the engine. It's a relatively inexpensive fix, so it's worth checking and replacing if necessary.