Z-suite can't handle big file



I’m trying to slice a moon found on Thingiverse : https://www.thingiverse.com/thing:3242080

I took 10 inch file scaled at 70%

Z-suite is not able to prepare supports, the progress bar is very very long like it will never end…

While with Simplify3D no magor issue, I can do anything, then convert gcode with Z-Tool…

Did I make something wrong with Z-suite ?

I have a I7 4790k OC at 4,8Ghz, with 16GB ram, and a GTX 980 GC…

Thank you.