Sorry, here again my concern in English.
Hello, I hope someone can help here.
If I load an STL file in Cura and then click on Slice, there is only Slicing running.
CPU utilization of Cura 0%, so the program does not matter.
I've tried Cura 15.04 / 3.6 / 4.0 / 4.1 until now.
PC Windows 10 x64 1903.
CPU I7 4770K
GPU 1080
All drivers / updates are current.
To rule out that it is on the PC, I have tried it on another synonymous, unfortunately, it does not work there (same problem)
Compatibility Mode (win 7/8) did not work either.
I do not have a printer yet, but it should be the Creality Ender 3.