I disciverd a way to get rid of middle earth lag for good without the need of Fastcraft.
What to do in the luancher
Set the M1G into 4Gs if you have a 64Bit Pc
Set the M1G into 2Gs if you have 32Bit Pc
Optifine Video settings
Turn off all particles
Set the FOV to the highest
Render Distance 8
Mipmap levels to 0
Transparent blocks from fancy to fast
Max FPS Unlimited
Smooth lighting to off
Smooth Fps on this stabilizes Fps
Chunk loading to multi core
Advanced OpenGL to fancy
Fog start 02
and turn regular fog to off
Fast math to on
Let me know if this worked becuase it worked for me so it should work for you as well :).
I would also recomend Orespawn so the lag will move into Orespawn dimensions instead of Middle earth.
This is my ultimate lag killer for the Lotr mod
also delete log files they tend to mess up things and take up too much room for your Pc.
Toggle BetterFPS to where its on the Algorithm mode
 Here is my tutorial video of this situation