High consumption Hyundai ix20

Dear Forum, I bought a Hyundai ix20 style (1.6 liters of petrol, 125 hp, manual transmission) in March. In the meantime it has a good 5,000 kilometers on the speedometer. From the beginning the consumption was about ten liters on 100 kilometers. Only during a holiday trip during the Easter holidays with many motorway kilometers it was less – so about 8.5 to nine liters. Since then it has been another ten liters. The standard consumption is indicated with just under 6.5 liters/100 km. That this can not be done, was to me kla r. I had expected 7.5 to 8 liters. But ten liters?! In everyday operation I usually drive about 15 km long distances to work, for shopping etc., mostly rural road with a short piece of highway. I usually sit alone in the car and the trunk is empty. I drive cautiously, 90 to 100 km/h on the country road and 130 to 140 km/h on the highway, switch up early and refuel Super E5. Aren’t there ten liters on 100 km a bit much? Thank you for your help! Michael