Extrusion is one of the most important treatment procedures in polymer processing. From an economic point of view an increase of throughputs without increasing the extruders size is of special interest. To achieve this objective machine manufacturers and material processors try to raise reachable screw speeds progressively. Thus, high-speed extrusion has become more and more important in research and development. But in fact it is still not state of the art. This is caused mainly by the possibility of huge material stressing and high melt temperatures due to high shear rates. Also problems dealing with the melts homogeneity because of short residence times occur sometimes. But usually, the application of mixing devices to improve the melts quality in high speed extruders is neglected, because such devices also lead to an additional increase in shearing and rising melt temperature. No mixing elements, which are designed especially for high speed processes, are available up to now. Existing devices do not fit the requirements of high speed extrusion. The consequence of this is that the optimization of mixing devices as well as the development of new mixers, which abet the homogenization without causing inadmissible material temperatures and stressing, are necessary. For the design process of such devices a deep understanding of flow and dissipation inside a mixing element is essential. Therefore, this work is dealing with analytical investigations on the optimization possibilities of a dynamic mixing ring. Different suggestions for geometrical improvements are given and their functionalities are verified by CFD simulations. In the end a new dynamic mixing ring element for high speed extrusion processes is presented.