Thank you for testing the game!
I see what you mean. I've already noticed this issue myself, although on the Windows version. I'm not entirely sure what's causing it, since most of the time it works perfectly. My best guess is that it has something to do with how I'm processing the mouse delta.
If I were to remake the game, I'd probably get rid of the star system altogether and use the mouse directly instead of locking it to the star. I think that would feel more intuitive and would probably avoid a lot of these issues.
And thank you for giving the game another try to save the sheep!