Minecraft Laggier in Launcher 1.2.1 Than 1.1.3 With nVidia Graphics Card

The last time I had played Minecraft was in launcher version 1.1.3. I was getting 90+ fps on Far render distance and fancy graphics with no Optifine. Now I have played in 1.2.1 and i am getting between 10-30fps and it fluctuates. I have tried closing all applications and using Razer Game Booster but none of these have worked.