Maximum connections error when synchronizing with Mountain Duck

[Webvance]

Occasionally, when files are being synchronized to the server with Mountain Duck, the server closes the connection with the error 530. Only 5 connections at the same time are allowed.

The server provider stated that it is not possible to adjust server-side configuration in order to allow for more than 5 connections at a time while transferring files. Any configuration would have to be done from the client side.

Is it possible to alter mountain duck's configuration in order to prevent this error when transferring files from happening? Would it be possible in some way to limit the amount of connections?