Lightweight mouse feels heavy and uncomfortable

Hello, I have an Attack Shark X3 that I put grip tape on to make it easier to grip. However, despite the mouse being 49g, it feels heavy and uncomfortable to hold and control, making me unable to make accurate microadjustments. I have tried to grip tighter to try to be able to control it better but my pinky just starts hurting. Is this mouse too big for me or am I gripping it wrong (I have tried all sorts of grip positions, but none have felt comfortable)? My hand size is 16.8cm x 8.8cm.

Pictures of mouse and grip: https://imgur.com/a/BmSPm19