ok, so that throws that theory out the window!!

upon further research....im thinking that mastercam software is not written to use more than one core. it appears that it is using 100% of one core, spread out over all....so you would have 100/16 (8 +8virtual) would be 6.25% which is close to the 5 and 8 we are seeing.....just a theory

I am having the same issues....I get max speed and 25% max utilization if i'm lucky. this shot was taken during a high speed scallop regen in 2020. why does the cpu not max out while crunching numbers? i would think it would use all it has until it reaches completion. This may be a problem since windows 10, i don't remember an issue with windows 7 but i may not have been looking as hard as i am now. Precision 5820 Tower X-Series Processor Intel(R) Core(TM) i7-9800X CPU @ 3.80GHz, 3792 Mhz, 8 Core(s), 16 Logical Processor(s) Windows 10 / 64GB RAM NVIDIA Quadro P2200 SSD 512GB