Hi Michael!

...some benchmarks:

Inventor import via IGES with ~250 objects, older INTEL Quad. Selected all objects, reset view and did some "serious" rotating..

mesh angle 10:

MOI 2: ~193-207ms
MoI 3.0 beta Apr: ~200-216ms
MOI 3.0 beta Jul: ~99-103ms

mesh angle 5:

MOI 2: ~460 ms
MOI 3.0 beta Jul: ~216ms

BOOOM!
I did check the CPU Usage History. All 4 Cores online..



Great work,
~ Marco