Mileage woes

Except for the fuel economy being poor, the car is everything I bought it for. Customer friendly showroom and workshop. Now to the million dollar question of fuel efficiency. I have driven around 200 Kms in 6 months and the average fuel consumption is around 9.5 Km/ liter. My trips are normally short around 5 kms in moderate to light traffic. In these same traffic conditions my last vehicle a Ford Fusion is to give 9.0 Km per liter. The workshop says that with more milage under the hood the fuel efficiency will improve. I am waiting if it doesn't Ill make this go viral.