Loading takes quite a while and the sensitivity setting is on the main menu, which is a bit painful, you have to go back to the menu and then wait for it to load whenever you realize 'no that's not quite it' and need to go back to adjust.
For me there's a bug in which the camera constantly moves down towards the floor even when I don't move the mouse at all. I remember that happening to me once (making a game with that exact same bug) but sadly I don't remember what the fix was but it seems to not happen to many people (though it always triggers for me specifically) might be an OS/my computer kind of thing.
It's kind of a shame because the movement is *incredibly* sick and well made. Even with the bug it felt really nice though the bug did make aiming unfortunately very, very difficult. My computer's cursed sometimes and it hit a weird bug.