Why is my Kia Niro's MPG not as high as advertised?

I recently purchased a Kia Niro and the advertised MPG is much higher than what I am actually getting. What could be causing this and is there anything I can do to improve it?

The advertised MPG is based on ideal driving conditions and may not reflect real-world driving. Make sure you are driving efficiently and avoiding excessive idling.

Check your tire pressure regularly as underinflated tires can decrease fuel efficiency. Also, try using cruise control on the highway to maintain a consistent speed.

If you consistently drive in stop-and-go traffic or frequently carry heavy loads, your MPG may be lower. Consider carpooling or taking public transportation to reduce your overall fuel consumption.