computer performance

 From:  Mr. Yuri (MR_JURAJ)
9303.1 
Hi,
I'm trying to edit models in MOI and sometimes complex models take a lot of time.
Like 5-10 for "simple" extrusion of one side.

I have i7 with 16GB RAM I think decent PC with older graphics card (2GB).
When the operation is calculating I open task manager but don't see 100% (or even close) on any resource.
CPU and graphics card on 15% max.
Have SSDs.

How can I speed things up?
Do I need good graphics for that?