Macbook pro Sierra. Slow finder open/save as dialog boxes Whenever I click file-open or file-save as in any program, the finder dialog box takes a tremendous amount of time to open (approx 2mins). I have tried all kinds of solutions throughout the web and none have worked, not even temporarily.  Most of the fixes I have seen say that good patches came after Mavericks, but I am running sierra.  I have had the problem even throughout El Capitan, but it was barely a problem. On El Capitan the longest delay was maybe 10 seconds.

A few things I have tried/noticed


The problem occurs in safe mode, but it does NOT occur on the guest accounts
Going into Safe Mode doesn't fix the problem
Deleting the Finder plist doesn't work
Deleting Icloud caches do not work
So after quite a few months of this problem going on.  I decided to sit down for a few hours and find the solution for myself.  Turns out, the solution was rather simple, but it might be a trouble point in other cases more than mine.  Ultimately, My problem was with Icloud.  After removing ICloud functionality from my mac, the problem instantly vanished.  Fortunately, I do not use ICloud at all and instead, opt for Google Drive.  For some, I say this might be a trouble point because it requires removing Icloud files.