I am also having the same problem about synchronization in Dropbox and I have already reported this in this forum and in the Portuguese forum which I participate here in Brazil.
Regarding the loading of folders, I also noticed this from time to time on my computer, however I believe that this is something more related to Windows 10 than to Dropbox.
One solution I got for this is to change about the Windows 10 Thumbnail Cache, where I changed the default so that Windows does not delete this history of thumbnails of folders, photos, videos and others and that makes loading folders and thumbnails much faster since Windows doesn’t need to load thumbnails every time in memory, as they are already stored on your computer.
I'll put here a .reg script in which you just run it and it will change the default of Windows 10 (which deletes from time to time) so that it never deletes, making loading much faster.
The link to download the file is here.
If you don't want to download the file and want to save the file in a notepad and save yourself .reg, I'm also leaving the link here.
Also, to avoid any kind of virus-related things, I also place the file scan here, proving that there is no virus in the file and my intention is to help the Dropbox community since I love this software and it is not today.
The file scan proving that there is no virus is here.
I hope to help someone, as I also suffer from some of these problems.
The estimated sync time really can show very hectic values so it doesn't help much.
See the linked recordings (I could not attach those files to this issue somehow).
Use the command: `asciinema play <file>` in a Linux terminal.
A note to the Dropbox developers - This is a crucial issue for which your customers should not need to make you aware. Certainly many more people are having this problem who are not aware of how to report it through the forum. I recommend that you add self-reporting diagnostics into the application. For example, if you are seeing transfer speeds under 10 kb/sec or estimates of 2+days to upload a handful of small files, you should gather all of the data you can and figure out real-time what is causing the problem and implement a fix in the application. Remember that when this happens, no other applicaitons are affected so this is a problem uniquely with the dropbox application or data transfer protocol that is beyond the scope of your users to fix.
Hey everyone, thanks for your updates here!
Let me know and we can go from there!
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