How can I make cable harnesses take less memory?

I'm trying to understand what I can do to make cable harness take up less memory.
See screenshots below.  I have about 12 cables made of 16 wires in a relatively simple assembly and the file size for the cable assembly and harness total 430mB (215mB each).  This is so large it takes minutes to save and regenerate.  All of the cable locations referenced to datums in the assembly and not some higher level assembly.  Each cable has maybe 2-3 plane or datum point-based locations based on assembly references.

To me this should be taking up 10mB max.  What could it possibly be doing with all this memory?
We're on windows 11, creo 8.0.0.0.