For some reason I seem to be unable to select any higher resolution when trying to play the game in fullscreen mode.
Despite my screen supporting up to 2560×1440 pixels, the maximum I get is 1280×1024, which isn't even 1080p:
When playing in windowed mode, I'm at least able to pick up to 1920×1200. While this isn't perfect, it's better than playing with a blurry screen.
What's the reason behind this and is there some way to fix it?