Deleting issues via Bulk Delete is slow

Issue Summary

Deleting issues via Bulk Delete is slow

Steps to Reproduce

1. Select a list of issues to be bulk deleted
2. Select "Bulk change" from the meatball menu from this issue selection page
3. Select Bulk Delete from the "choose operation" page
4. Click through "Next"/"Confirm" till actual bulk delete operation starts

Expected Results

Bulk delete completes successfully

Actual Results

Bulk delete times out and issues are not actually deleted.

Workaround

Delete issues in smaller batches