They said it couldn't be done! Turns out they just didn't want to. From Software's strong-selling but perfunctory PC port of the malevolent Dark Souls was cursed with numerous technical shortcomings at launch, but fans have worked hard to lift its rather pointless limitations. The locked 720p resolution is already a thing of the past, and now the treacly 30 frames per second ceiling has also gone the way of the eight-track tape.
Some provisos - you'll only be able to play in offline mode as it entails putting Games For Windows Live to sleep (quelle dommage), and you'll already need to be running the resolution unlocker. From there, you could hit any number of tech problems but hell, it's definitely worth a shot to free this landmark game from its technical bonds.
Details, download links and a running commentary on what does and doesn't work, and what might happen yet, are in this Steam forum thread. A direct link to the mod is here, too. I would embed a video but apparently Youtube caps footage at 30FPS, so that'd be pretty pointless.
You know what else is pointless? No, you're wrong.