the new patch.

so youre saying its all my cpu's fault when my friend with almost the same one if not worse has no lag? so irritating

But i still run the game at like 80% cpu on both cores.

Overclocking might be an alternative, but remember to be careful if you want to do such.
I did it, but cant remember if i got a better result xD
Got a 4X phenom 2,8GHz Clocked to 3,1 if i remember.
Now, i still got much to go on on my Cpu, dont know about the one of yours... >.>

You can try deleting config_mp.cfg and seeing if that works. It seems to have some positive results by some people.

It's already OC to 2.8 my friends is duo only at 2.6..and if i delete the cfg will it make a new one when i start mp?

I guess, that is what usually happens to like COD4, some Steam files and moar...
But dude, what stops you from overclocking is the heat of your processor, and how stable it is.

How much heat a processor can handle is usually diffrent from processor to processor, i took my self good time to read about overclocking before i got 2 the real deal.

Or you can simply buy new parts....But remember, you cant brag about it!

I'm also getting the same problem..

GPU : GTX260
CPU : Intel Core 2 Duo E8500

Does anyone know what the problem is ? or is the game still not optimized for some computers ?

idk exactly like my friends pc cept he doesnt lag..and gets 60 fps constant.

theres a option in the config to turn multicore on go do that lag fixed.

There are certain config changes that will help. Specifically

r_multigpu 0
and
r_multithreading 1

I think those are it, that was off the top of my head. but that CPU just barley cuts the minimum requirements so you will need to turn a lot of graphics down.

So this means I either have to upgrade my computer or wait for another patch that Treyarch is going to come out ?

Thanks.

in normal config or mp_config? i find Multithreaded device. and gpu. I turned gpu to off since i dont have 2..but i dont see any multicore

multithreading = cpu. Change it to 1.

Change it in both of them just in case.

multithreaded is the multi core.