? Linked Object and Object Center. How can I change the object center?

Hello.
Thanks in advance for any suggestions.
?How can I change the object center of a linked object?
An object was linked and animated with a Path Constraint.
But the controlling (empty) provided by link library action
is <not> at the original center of the object …
This make path constraint results sloppy.
Even if the empty follows the path … necessary rotations will move the object away from path. This is undesirable.
Clicking on the object or the controlling empty results in the same movement.
The blender user cannot enter edit mode and cannot move object closer to controlling empty.
Thanks for any ideas.

I think the center of the linked object is the origin of the world in the linked file.

Thanks for the information

Can you affort to append the object instead of linking it or would this make your file too heavy?