I'm not sure if this is a problem or normal.

When zooming into the sniper scope, the mouse reacts poorly to slow/microscopic reticle movements. This makes aiming at long distances very difficult. There's no smooth adjustment, and the reticle seems to get stuck and jump.

If you move the mouse very slowly, the reticle may not move at all.

This issue has been raised by others before, but apparently hasn't been resolved.

No mouse settings in game or DPI changes helped.

Just take a scope, I used 20x, dedal DHF-5 aim as far as possible somewhere, and move the mouse very slowly