Some of the code in Dreamweaver is very ineffecient. For example, if you do a simple text search-and-replace function in Dreamweaver then it will be VERY slow compared to a good text editor like TextPad.
I can't imagine why Macromedia can't implement faster FTP support in their software, but as far as I know there's no "fix" to make your FTP go any faster.
David Carrington, May 2004