In order to make our retrieval of a particular object more efficient, we declared the associations of this particular object to be declared lazy. This improved the performance of object retrieval, but caused the saving of new versions of the same object to be slowed. Please note that the associated objects were already in the database.
Could you please explain why this happens.
Thanks very much
S

If you indicated to cascade-update the children, your updating code now has to first be retrieve, then update, then persist to the database. When it wasn't lazy, the "retrieval" step didn't occur.