I guess that this is what happens when you do a Mac build and you don't own a Mac to test it with... But it may be that you don't have Direct 11 installed and it defaults to Direct 9 that for some reason doesn't work properly with some elements of the game.
Also, I don't want to sound rude. But you probably shouldn't be judging what feels precise and what doesn't if you are using a touchpad.
But thanks for the feedback. I appreciate it!