Creo Mouse Lag with windows 10 1903

Hi,

I recently upgrade to windows 10 1903  enterprise   November   update. I got problem in both creo 5 and 6.

When the assembly is small (like single part), everything seems ok. when the model gets complicated, like 30 parts, i got sudden huge  lag when suddenly drag mouse to pan zoom.  it's not always happen,  lag for the first second, then good for a little while  . After little while, it starts lag again, i rotate the model a bit, then good again, then repeat.

The "good" period seems like it's reading cache of current model. 

I also noticed both verison of creo are stongly use signle core single thread now(i know CAD is single core, but before wasn't like this).  When i rotate model now, only single thread is 100%, lag is gone when that thread is low. Now the performance is waaaaaaay lower than my Core i5  6600 with nvidia gtx750.

No lag with manual click Pan Zoom under "Zoom" tab, no lag with mouse movement on screen(like i could play games...), just model lag when manipulate with mouse.

system is windows 10 1903 build 19025.1051, intel 5960X@4.3ghz, 56gb ram@2400mhz, Firepro w9100, monitor 1080p.

Creo are  6.0 M010 and  5.0 M040.

Thanks.