Poor performance air conditioning, Seat Full Link

Hello dear everyone, I hope you can help me. I’ve had a new Seat Arona 1.0L 95 Ps for a week. Unlike my VW Caddy or my Golf 6 the air conditioning cools the interior much worse. I have a manual air conditioning system. It comes cold out of the nozzles in my opinion, but the inner body is unfortunately not cooled as well as with the other vehicles. What could this be about? Are the components not so high-quality and d I also have the Seat Full Link package with me on my radio. Do I always need a connection to a USB-C from a mobile phone to a radio for displaying the apps on the radio? Or is this also possible with Bluetooth? I thank you for your support already.