What causes poor engine performance on Audi 80?

I recently bought an Audi 80 and noticed that it had poor engine performance. The acceleration is slow and it struggles to reach high speeds. What could be the cause of this issue?

One possible cause of poor engine performance on Audi 80 could be a clogged air filter. This restricts the air flow to the engine, resulting in reduced power output. Try replacing the air filter and see if the performance improves.

Have you checked your spark plugs? Worn out spark plugs can lead to misfiring and decreased engine power. Try replacing them and see if it makes a difference in your Audi's performance.