How to fix engine performance issues in a BMW?

I recently bought a used BMW, and I am experiencing issues with the engine performance. The car feels sluggish and I'm worried that there may be a more serious underlying issue. Can someone provide some advice on how to fix this problem?

First of all, make sure to check the spark plugs. They may need to be replaced if they are old or worn out. Also, check the air filter to make sure it's clean. A dirty air filter can cause poor engine performance. If the issue persists, it's best to take your car to a certified mechanic for a thorough inspection.

Another possible cause could be a clogged fuel filter. This can restrict the flow of fuel to the engine, resulting in poor performance. Try replacing the fuel filter and see if that improves the engine's performance.

Have you checked the engine oil level? Low oil levels can also cause engine performance issues. Make sure to top up the oil if needed. If the problem persists, it's best to schedule an appointment with a BMW dealer for further diagnosis.