Hi Eric,
Cinema 4D scans the objects from top to bottom so rearranging can solves the problem in some cases,but I think that when you rearrange the objects in the Object Manager, you could also using the Shift Priority tag, this may fix the delay problem. You could also get information that may be useful to you about the priority by right-clicking on Priority and then Show Help, if the problem persists you could post your file here so that I can check it for you.
I hope this is useful to you.