Shoot it more and you will find they are fine, if your eyes are not good then you will never like them. Once you pick up on it they are perfectly fine to use. I prefer the Sharp triangle as it comes to a thin point. A thick post is harder to find the perfect centre on a small target I find but the triangular shaped sight of the Mauser goes from thick to slim its easier to use on smaller targets at range. Took me a lot of rounds to get used to the sights on my K98s and M48 and finding ammo they liked but now I have no issues and find it very accurate. By no means would I say they are better then the sights of a No.4 or M1 but once you figure it out you can be just as effective.
Also try with and without a sight hood you may find you prefer it on or off better.
Also try with and without a sight hood you may find you prefer it on or off better.