I have the same problem. I basically use Dropbox as my work folder and put all my files in there. As a developer I have millions of small files. It takes 2-3 weeks to sync the dropbox from scratch (currently 285gb of dropbox files). And my CPU is regularly pegged at 100%. I basically have to switch Dropbox off when I'm not plugged into power on my Macbook Pro in order to conserve battery. I've contacted support several times, and their response was basically "don't".
I'm on one of their top plans (2TB). What's the point in having such large plans when the number of files you have causes the whole service to break down?
Been searching for a good alternative to Dropbox. Something that would be CPU efficient, safe, secure and reliable. I also use their packrat plan (saves a history of every file ever), which is nice too.
Any other HN readers have any alternatives? I really just want a plug and play solution, and not have to roll my own.
I don't trust Apple iCloud for one bit as they've been quite inept at running cloud services. I've tried Google drive with poor results too.