Thank you very much, arm-block,

FBX is old but pretty robust. However, simplifying the data has often shown a good effect.

There is typically an option to have the Object run by the joints in place or independent of the location.
https://help.maxon.net/c4d/2024/en-us/Default.htm#html/OCASKIN-ID_OBJECTPROPERTIES.html#ID_CA_SKIN_OBJECT_COORD
This would have been my next iteration to explore with you, as I'm unfamiliar with your target app.

It's great that it is solved.

Enjoy your project