I believe this game needs a Multicore Rendering option, as it runs poorly on my PC on High graphics and Render Effects (20 FPS while standing still, 15-17 while walking), even when I get 70+ FPS on other games with multicore rendering and every graphics option set to the maximum. The option would help many others to obtain a higher stable FPS while playing, although it may just be a problem with Java. I, however, find it a bit necessary to have the option available in this game, as it is notorious for running poorly for many people. It would mean a great deal to players that can't run the game at a high graphics setting and players that already run the game on High graphics, but aren't happy with their framerate.
Bit of a bump because this is relevant to me and I believe it should be implemented.