I recently updated my macbook pro to macos 10.12. After I'm facing a lot of problems with file access.
Whenever I try to save or open a file, the "File Open" dialog comes after 30-60 seconds. Till then I'll not able to do anything on the application. But other apps work fine.
File->Open Recent is also taking the same amount of time. I've no option other than waiting for it load.
Whenever I try to drag and drop a file it is not easier. As mentioned even this takes same time.
I think the above problems are associated with a common issue in the OS. Please let me know if you have any solutions.