Example Wanted: Is it possible to send a file faster than this code

Does anyone have a good complete (stands alone) example program in java showing how to send a file fast. Is this even possible. I.E.: I have to use the below code and nothing else.

I have used code such as the below, but it's extremely slow!

OutgoingFileTransfer transfer;

FileTransferManager manager;

XMPPConnection connection = SparkManager.getConnection();

manager = new FileTransferManager(connection);

transfer = manager.createOutgoingFileTransfer(myJID);

transfer.sendFile(myFile,"Sending file");

Thanks,

Mike