I get an average of 400 frames on max settings, normal render.
1. With optifine, turn off all animations and particles, set it to max fops and use fast openGL.
2. Remove game booster and never use it again, if you want to close excess programs open processors within the task manager.
3. Modify the amount of RAM imputed into Minecraft, or even limit it due to the fact that putting too much in slows down your computer as a whole and makes things just as worse.
4. Use texture packs under 32x32, to even 1x1 but I find that it barely makes a difference.
Tested on a six core Amd as well as an intel atom...
5. Oh and, save up for a new custom desktop.