M11x R2 laggy in Warcraft 3

My M11x R2 is very laggy in Warcraft 3 high setting. I am sure my optimus is running on GT335m. I already tried to overclock the processor and GPU but the performance still the same. When I watching Warcraft 3 replay with 8X speed. I will freeze the whole computer after a while and I need to force shut down.
I am using the fix of Optimus that given in this forum and with 259.47 driver

Funny thing is I always have lag issue with blizzard game. I have a so-so FPS in Starcraft 2 and World of Warcraft as well. It seems like my 4 years old Asus Laptop with with ATI X1700 performing better than M11x in Blizzard game.

I have no issue in Need for Speed:Shift, Batman and Transformer:Cybertron.

Anyone M11x user encounter this problem before? Appreciate if you can share the solution. HELP~~

 

What drives you using?
Try the Dell 257.30 drivers first. (Which are found on the Dell support site)
If those still don't help, try using the 258.96 drivers with the modified .inf.

 

There have been a couple threads on WC3, though I don't believe anything was found to fix it (searching the forum probably will give you better answer than my memory).

If I'm right about that, my guess is it's so old that it wasn't coded to take advantage of multiple cores, and given that the ghz per core is so low in the M11x, it makes sense that it wouldn't perform as well as newer games that take advantage of having multiple cores.