This will depend on various factors.
The amount of data you want to sync.
The speed of your internet service provider.
The load on our servers.
The type of data you are trying to sync. i.e. small notepad files or large image files)
Keep in mind not to put to much data (or too many files) into your Vault at once. It’s always better to upload in smaller packets. It is also faster and easier to resolve any problems that occur.