Latest Pro client (16.0.2) on Mac, Server 15.0.3 on Windows, hosted less than 50 km away. I find container fields, regardless of type take 75-90 seconds to receive pictures, regardless of size, 18 KB or 2 MB. I drag the picture into the field from the Finder, and after about 20 seconds, the icon 'ghosts back' to the window it originates from. Whether I click in the FileMaker window to commit or not, there is an hourglass, and one minute + 10-20 seconds after, the image is finally in the field. Seems not to be a bandwidth problem, given the same upload times for small/big pictures. Suggestions?
Geography doesn't matter, upload and download speeds do. Run a speedtest from both the server itself and the client, let us know what those numbers are.
Also, post the specs on your hardware and OS running FMS15. EG Windows 7 doesn't run server as well as windows server 2012 in my experience.
As for suggestions, please provide more info there as well:
1) How are container contents being stored? Inside the file, as a reference, or as external storage?
2) If external storage, is that secure storage? (time to encrypt/decrypt files is a factor)
3) Do you have the setting for storing thumbnails set?
Managing performance with thumbnails
4) Are there any record/layout/field triggers running that you know of, or maybe that you don't? (open script debugger in FMPA to see).