The present application relates to a mail processing system and related method containing dynamic speed control which uses real time and historical system parameters to dynamically control the cycle speed of an inserting or wrapping system to optimize system efficiency, and maximize throughput and performance. A document processing system with dynamic speed control analyzes system parameters. When the operational conditions are favorable the system will increase cycle speed of one or more of the mail processing components of the system in increments until an optimal speed is reached. Likewise, if conditions are unfavorable the system will decrease cycle speed of one or more of the mail processing components of the system in increments until an optimal speed is reached.