How to avoid performance issues in PL/SQL?

How to avoid performance issues in PL/SQL?

According to my knowledge, below a few points to avoid performance problems in PL/SQL.
Is there any other point to avoid performance problems?

1. use FORALL instead of the FORUM and GATHER in BULK to avoid a loop several times.
2. RUN IMMEDIATE is faster than DBMS_SQL
3. use NOCOPY for OUT and IN OUT if the original value need not be retained. Overhead of keeping a copy of OUT is avoided.

Thanks for your comments Justin!

BC explains things right on part SQL...

http://www.DBA-Oracle.com/art_sql_tune.htm

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