Changing rights and owner in one command to safe resources

I have a backup script with the following function: function change_rights() { chown -R ${OWNER}:${GROUP} ${DIR} find ${DIR} -type f -exec chmod 0640 {} \; find ${DIR} -type d -exec chmod 0770 {} \; } Now the problem is that ${DIR} is very huge and in order to change the owner and rights I have to traverse the directory at least twice which is extremely resource-intensive. Is there any way/any command to change the owner **and** rights **at the same time**? That is to say changing what's in the inode in one go? I'm working on a ext4 file system.