Models import into Substance painter bump and bulbous looking.

Purchased CG model on CG trader. Imports fine in C4D, but when I export to substance painter via either FBX or OBJ. Substance painter messes with the normals and the model looks totally bulbous and strange.

(Please see attached image)

I have this issue a lot and it's really tough to get around. THis time I'm stumped and can't work with this model. 

I've tried C4D, 'align normals', I've tried deslecting / selecting normal options during model export from C4D.

I guess I need a way to reset the normals in C4D but have exhausted all the options I can find...

Thanks in advance for any help.