Constantly Re syncing the same 70 Gigs

My iMac at home runs and syncs flawlessly same model at work the Creative cloud syncing function dosent work well at all. Every-time I try and use it it re syncs the same 70 Gigs 473 hours left. Constantly and after a while the mac starts to freeze and I have to restart and try to get creative cloud to stop syncing. I have tryed reinstalling creative cloud but no change. So I quit using and use dropbox but it would be nice if I could get it to work!

Mac OS High Sieria