i could be wrong but i think the right hand mirror as you look at the photo (driver) just isn't folding enough - is it stuck / does it need some lubrication to fully close? i dont think your left mirror is 'over closing' but rather the right is not closing fully.
You can clearly see from the second photo that they start from different positions. So I would dare to assume they are set differently passenger and driver side and then arc through the same angle each side, so end up as seen in the first photo. Hope that makes sense. There are greater issues in the world.