Mavericks Low FPS

Hello! After updating both of these computers to Mavericks (OS X 10.9), they run Minecraft extremely slow. I have tried Oracle's Java 7 and Apple's Java 6. I used to average 60FPS+ on both at high settings, which may sound crazy due to their lower end specs. Anyway, there is a small outcry from the gaming community. Many gamers use Hackintoshes to game on, and now, many games are messed up. Some developers have pushed patches out, and those have worked well, but, Mojang hasn't submitted any patches for this, yet. Does anybody have any suggestions?