Slightly loose side panel

My side panel on the brand new Aerox 5 wireless is slightly loose. It is barely visible with the naked eye, but you can feel it during gaming as you grip the mouse and move around - it is kinda annoying.

Does anyone has the same issue or know how to fix that? I think that it may be fixed just by tightening some screw inside but haven't opened the mouse yet - since I did not find any teardown online even for Rival 5 that has the same body (to be safe - not used to modding like this).

I am attaching the example of what the issue sounds like since it is barely visible in person :)
https://youtu.be/PKzMLFvvDh8
https://youtu.be/F5WX_Woki84

Thank you for any reactions.

UPDATE:
I have inserted a piece of paper to reduce the clearance and it seems to work.
Going to get some black paper from my local store and trim it to blend in as a temporary solution until the teardown/disassembly tutorial comes out.