This is just a tutorial on how to reduce lag in minecraft 40% +  30 % + 20 = 90% FAST!!!! + 0.00001% + 9.99999 = VERRRY VERRY FASTTT!!!!
For the 40%Faster...Go to settings and change the settings to this

FOV: Normal

Particles: Minimal

Graphics: Fast

Performance: Max FPS

Render Distance: Tiny or Short

GUI Scale: Normal

View Bobbing: Off

VSync: Off

Brightness: Does not matter

Advanced OpenGL: Off

Anisotropic Filtering: Off (0)

Mipmap Level: 2


Then for the 30 %

Go to Task Manager by Clicking Alt + Ctrl + Del
Now find javaw and right click and set priority to high.....to let your computer only focus on minecraft..

Then do the 20 % percent of reducing lag...Delete all version of minecraft (if your using TEAMEXTREME) except for the current version to let this reduce the size of your minecraft dir....

Now....Delete all your HD or  Heavy Sized Mods and let the small mods to function like toomanyitems etc....Update Forge to your ver.....

For the 1.000 percent of REDUCEMENT...

Delete Unececary files.....like other folders.....And close other programs like firefox,chrome,application ...then set your antivirus to gaming or silent mod,....

For the last Part is......

Go to My Computer....Right Click Disk C:/ and click Disk Cleanup
Wait....
And Uncheck all and check Recyclebin.....OK
Now Clean your PC with CCleaner......
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Now that will turn minecraft  to 100% VERY FAST!!!
DIAMOND AND COMMENT PLEASE.....