Triangles problem with importing from C4D into Unity3D

Hello,
I have problem with my models.
For example I’m making objects in Cinema 4D then I’m exporting them into FBX and the amount of triangles are doubled.
Maybe you have any idea why it is happening and how to solve this problem?

what is in your c4d is number of polys count doubles is probably because it was triangulated when you exported (turned from quads to triangles)Because one quad = 2 triangles