How can I improve the performance of my Vauxhall Astra engine?

I have been experiencing some sluggishness and decreased fuel efficiency in my Vauxhall Astra. What are some ways I can improve the performance of my engine?

Regularly check and replace air filters to ensure proper air flow into the engine.

Consider using a high-quality, synthetic oil for your oil changes to improve engine performance.

Have a professional mechanic perform a fuel system cleaning to remove any buildup from the injectors and fuel lines.