Speed problems - Transfer queue

I used to run Smart FTP on XP, but since I changed to Vista, download/upload speeds have reduced dramatically whenever I use the transfer queue. What's more, I have just downloaded the latest version, and I can't even download files directly from the remote browser to my hard drive -- everything is sent automatically to the transfer queue. I don't have any speed problems when I download/upload files directly, but how can I stop files from being sent directly to the transfer queue??!! Or, how can I increase speed in the queue?

Thanx in advance!