Slow when updating quantity in Inventory Posting

Hi,

     Our client using 8.8 PL5, when they are trying to update quantity in Inventory Posting with 5 lines it takes more than 1hr. But that only a sample entry, the current posting is 30+ lines. The database size is almost 200GB but already shrink the log. Also the warehouse is 400+.

Hope to hear positive response.

Regards,