Harpoon RGB Wired scroll wheel squeaking

[Yubermis]

Hi,

 

I have a Harpoon RGB mouse (CH-9301111) and love it. But when I scroll down, I get an annoying squeaking sound from the scrolling mechanism. It only happens when I scrolld down slowly, there is no squaking sound when I do it faster. Is it a common issue, and is there a way (like greasing etc.) to solve this without breaking the mouse apart?

 

Here is the Vocaroo link for the sound.

 

PS: I bought the mouse 1 and a half years ago, and the sound is here for a quite long time. It's not a new thing but annoying. I am still under warranty (In Turkey we have two years of warranty). Should I send it back?