BOPAlgo_Splitter performances

Hello

I cut a solid by a plane and I calculate the geometric properties of the solid below the plane (Volume and center of gravity). I use for this the classes BOPAlgo_Splitter with the property SetRunParallel and GProp_GProps. I repeat this calculation several times to display a graph.
It is very slow, I would like to know if there is a way to improve the performances.

Regards