it has nothing to do with the game itself, it's a "problem" wich origin goes back since the very first of all 3D game.It's a matter of rendering 3d on screens like those we're using. kinda hard to explain on the fly. It's just that on the screen resolutions we're using, that details you're showing on your pic is only 3-4 pixels wide. Hence it cannot renders details like we sees with our eyes in real life, wich are much more precise than a screen.
there are ways to limit that effect to a considerable extent, but at the cost of hardware...
Try using values of at least 6x for Anti-aliasing (they "remove" jaggy edges)
Try adding Adaptative antialiasing should your video card has it.
Try using highest possible resolution on your screens
Try waiting for some new i-don't-know-when screens with resolution of up to 5120x4096 or more where you will have less problems like that... But well, that's not a solution available today
Either way, it's not moddable and "doesn't need to". You'll see plenty of those on other games, depending on your "choice" of resolution and Antialias settings