Hi Mauro,

> MOI V3 20 JULY=1023 ms
>
> MOI V3 16 APRIL=1150 ms
>
>
>
> Intel core quad 9450-8 Gb RAM


Do you also have an nVidia card like Mike?

It looks like the old beta was using multiple cores on your machine already, but that's not from MoI so it must be something the driver is doing. But it's probably sapping resources away which MoI would able to use more effectively.

Can you look in your nVidia driver settings to see if there is any option like "Threaded optimization" which can be turned off? Do you see any change in MoI after that?

- Michael