We have some clients claiming they can upload files twice as fast using a Filezilla client than using the 7.3.1 version of edtFTPnet/Pro built into our Windows service. In our testing Filezilla does not transfer files faster so there must be some network issue they have. The files we send are already encrypted so we don't enable compression. We are setting MaxTransferRate to 0. Are there other settings besides TransferBufferSize that will affect the upload speed?