FTP takes 30+seconds to load and doesnt load fully

[Jonesey]

If I set up an FTP account to a web domain root instalation, when it comes to browse httpdocs it takes ages to load and doesnt load fully ie misses half the documents and files (smartftp). All other folders are instant even the root directory above httpdocs, and the folders within httpdocs are instant..

What would be causing this issue?

Regards