What could cause the Vauxhall Insignia to have difficulty starting?

I've noticed that my Vauxhall Insignia has been struggling to start, especially in cold weather. I've checked the battery and it seems to be fine. Any ideas what could be causing this issue?

It's possible that your spark plugs may need to be replaced. Over time, they can wear out and cause difficulties with starting the car. I would recommend getting them checked and replaced if necessary.

Another potential cause could be a clogged fuel filter. If it's been awhile since your last service, it may be time to get it checked and replaced if needed. A clogged fuel filter can make it harder for the car to start.

You may also want to check the ignition switch. Sometimes it can become worn out or loose, resulting in difficulties with starting the car. If you notice any issues with the ignition switch, it may be best to have it replaced.