Dynamics are always fun to play with and can make a huge impact in an animated piece. Depending on the complexity of the dynamics simulation, there needs to be some workflow tweaks employed that will make your scene much more manageable.
If you are working with both dynamics and fracture objects in Cinema 4D, you may want to consider baking those into keys.
Athanasios Pozantzis follows up on a question asked after his NAB 2015 presentation. Athanasios shows how you can easily bake dynamically simulated fractured objects in Cinema 4D to keyframes.
You don’t actually need the fracture objects to propagate the dynamics once it has been fractured. If you take the individual groups out of the fractured object, the process of baking into keyframes becomes much more simple.