Seat ventilation quite loud

Hello, now that it’s so warm I tried the seat ventilation once. I noticed that when the compressor is switched on, the air blows into the seat. When the compressor is running, you hear from the back left quite clearly current noises as if the compressor is blowing off. The cooling from the seat is not as effective as I think it is. If you have switched it to full power, you can only feel a very weak airflow when you are holding your hand over it. The extendable knee extensions don’t seem to be ventilated at all. Even at level 2 you can’t feel anything anymore. Is that also so with you? Especially this flow noise at the back bothers me. Is that from the air temperature actually air conditioning or mixed air like from the nozzles? Thank you and another nice Easter Monday greeting Dommi