Oracle Database Discussions

Hi all,

I have a question regarding SQL Apply performance in logical standby. There are two kind of operations that are remarkably slow when applying them on logical standby. These are "truncate table" and "delete from table" operations.
When logical standby pick up one of mentioned statements from logs one of appliers start working whereas rest others are waiting. It looks like standby hang and very slow sql apply is moving on gradually and finally when operation completes standby is behind primary for 4 or 5 or even 8 hours.
What can be done in this regard to speed up sql apply and alleviate this situation?

Best Regards,
Alex