Gear problems

Hello, I’ve been proud for 4 weeks owner of a Kia Proceed GT with the 7 gear DSG gearbox and super satisfied with the car, however, the gearbox in cold condition in the 3rd or 4th gear does not really turn up, it remains stuck in the respective gear, starts to jerk and it passes a few seconds until the gear is turned up, while the engine turns ever higher until eventually into the next higher, however, with the shift flaps I can normal up/runterscha lten, does anyone know the problem? The Proceed is built in 10/22 and has run 9,000 km, Facelift Model Thanks in advance greeting standards