Settings screen yes, even the wording on game screen. Actually it makes it even harder to read green speed and wind, any of the writing.
I will try to explain the best way i can why this is happening. Ok...only the original pic has a certain native resolution. Everything else is extras, do not make part of the image. Balls, avatars, meters, wind indicators, line on grids, dots on greens. So, when you use a 1024 x 768 resolution and all these staff are going to be integrated into the pic, unfortunately they have to be downscaled to follow the resolution. On the other hand, when you set a 1080 resolution eventhough the pic is just sharpened, cropped and upscaled, everything else (avatars, balls, wind indicators, dots, lines) have a real 1080 resolution, cause they are not part of the image and they can do whatever they like with them.
I don't know if i was clear enough to explain to you how it works.