my MacPro (12 core, 2013, 48gB RAM, lots of disks) completelty freezes when I activate file sync.
It took a while to discover this, but when I looked in Activity Monitor, I found that the 'Core Sync' process takes all RAM and almost all virtual memory (= disk space on my system disk).
In my case, this was 44gB (of 48 installed) and 350gB disk space (of 500gB system disk).
The Mac start to complain about lack of memory and finally stops to do anything - a complete freeze!
When swithcing the up/download speeds to medium, the sync still takes a lot of memory:
Why does a relatively simpel service takes so much? And why doesn't it switch down when other apps are in need of memory.
My feature request: a priority selector, in stead of the speed selector.
I would love to switch to low priority, when other apps are open.
Note: My Creative Cloud Files folder resides on a separate disk (a great recent improvement!).
Note2: on an iMac (with CCF-folder on separate internal disk), syncing only takes 100mB of RAM.