How can we Control the number of notification documents published to the Broker

Can we control the speed and volume of notification documents published to the Broker by an MQ adapter from an MQ queue? Especially in high volume situations, when there more than 200000 messages on the MQ queue, what is the solution? Are there some kind of throttle settings that can be fine tuned to publish more documents per sec from the MQ queue to the WM Broker?