We really need more information to guess at the issue.
I noticed NX10 is considerably slower than NX9...same ops. NX9 vs. NX10....jumping within ops gui, ipw related functionalities gen-regen toolpaths, selecting features...etc.
I am waiting for NX10 MP13 to see if it fixes this issue along with many others...
Have you reported these issues? If not there will be no fixes.
For generating and re-generating tool paths, have you enabled intelligent re-generation of tool paths, so that non-cutting moves are not re-generated if they didn't change?
Number 5 needs more input
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