Weird Razer Huntsman mini Noise s

Hello I am German and I Recently bought the Razer huntsman mini with red switches in an German electronic market called Saturn. I wanted a new model but everything was empty so I said I want to buy it via the Saturn Website and after three days they send it to me. I am now using it for like 20 days and it doesn’t sound like exhibit at the Store  at all. I can hear the switched rubbing on the side of the shaft. Is it because the modded it or do I have to use it more often so the sound gets better? I am frustrated please answer me!