Oracle UI Crashes When Attempting Bulk Deletion of Organizations on Items

I need to remove xxxx no of items from Organizations **** and yyy
I attempted to use the "Manage Delete Groups" functionality, but it is unusable—the screen consistently times out or crashes, even when adding as few as 50 items at a time.

Is there an alternative method to delete these item-organization combinations in bulk?

Specifically, is there an FBDI template or another supported process that can be used to perform this action efficiently?