Textures looking "serrated" after export fbx mesh on blender

As you can see above, after i used blender to export my meshes from .obj to .fbx i got this textures all messed up.

Already tried to set a smooth angle, import normals, but i can't get a good result, what i can do?

Any workaround or solution for this? Thanks you'all!

Dênis Fernandes