Keyshot project file ballooned to enormous size

[Jesse.Art]

Using the ZB2KS bridge I've transferred a model thats roughly 2.5GB's in size total for the project. There are six 2k textures total but for some reason the KS file has grown enormous in size, over 10GB's. Why is it this large and what can I do to bring it down to a reasonable size?

[KeyShot]

The textures should not affect the size. ZBrush controls the level of detail for the mesh that is being sent to KeyShot. You may want to see if you can reduce that.