Aveo Year of construction 08 Heating Temperature

Hi, I’ve bought a aveo, maintained a notebook and still has a connection guarantee. have a question: is it normal that at set high temperature, the heat is just lukewarm? even after a long drive, the temperature display is never exactly 90 degrees, is it normal at chey? always shows so 70 degrees. Have called at the car dealership where the inspections were made, that would be normal at Chevrolet? at my golf 4, warmed up, has the highest level almost corresponded to a fön. thank you