Why does my Vauxhall Insignia have trouble starting?

I recently purchased a used Vauxhall Insignia and have noticed that it often has trouble starting. It hesitates before starting up and the engine sounds sluggish. What could be causing this and what steps can I take to improve the starting process?

It could be a problem with your spark plugs or fuel injectors. These components can get clogged or worn out over time and affect the starting process. I recommend getting them checked and replaced if necessary.

Another possible issue could be with your battery. If it is old or weak, it may struggle to provide enough power to start the engine. You may need to have it tested and possibly replaced.

Make sure you are using the correct fuel for your Vauxhall Insignia. Using lower quality or incorrect fuel can also cause starting problems. Stick to the recommended fuel type for your vehicle.