Hi! The simplest approach you can use is smth like that
- evaluate collision parts in Blender (for example approximate all geometry with boxes, spheres, capsules)
- add all them in asset editor as Primitives for Simple Collision
Only Simple Collision is used for Phys Calculations. As for using Convex collisions - it is optimization to gain effective way of testing collisions. With concave geometry it is much more difficult to check that out )