How do I speed up message consumption?

Issue

How do I speed up message consumption when using a consumer, as in:

            connectionFactory = new ActiveMQConnectionFactory(ActiveMQConnection.DEFAULT_USER, ActiveMQConnection.DEFAULT_PASSWORD, iptosend);
            connection = connectionFactory.createConnection();
            connection.start();
            session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            Queue queue = new ActiveMQQueue(branchQueue);
            Destination destination = queue;
            consumer = session.createConsumer(destination);
            MyConsumer myConsumer = new MyConsumer();
            consumer.setMessageListener(myConsumer);