Multi-Core CPU use + GPU use and such

I lately playing a game based on unity *1, but it seems only to use core 0 for physics.

It get the core 0 to ~ 80-90% (still room), while the rest is idleing, and the GPU usage is only at ~ 50-60%.

But the game which is doing lots and lots of physics on lots and lots of objects (550+ models loaded) is going down to less than one frame per second. (on a thing with more than 750+ objects I hit the record of 0.1 frame per second.. yes every 10 seconds i got a new frame... core 0 was maxed out at that time)

That game is meant to be realtime!

• Is there an option to force Unity to use more than one core?

• or use the GPU more for Physics?

I know lately is all about those mobile devices, but they also have already more than one core (4 latest gen) plus one GPU.

• want to make use of all of my 6 CPU cores! Make that happen! 2

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*1= actually its Kerbal Space Programm. *2= I dunno what version of Unity they are using it may be Version 3 which is know as not being well at use multicores.