How to improve the fuel efficiency of a Kia Stonic?

I recently bought a Kia Stonic and I've noticed that my fuel consumption is quite high compared to what the manufacturer claims. Are there any maintenance tips or driving habits that can help improve the fuel efficiency of my car?

Regularly check and replace air filters - a dirty air filter can affect fuel efficiency.

Keep your tires properly inflated - under-inflated tires can lead to increased fuel consumption.

Avoid aggressive driving - rapid acceleration and braking can use up more gas.