smbmount and smb.conf

I'm using fstab to mount smb shares from a W2K server. I don't have, therefore, Samba server running, rather mount is calling smbmount to make the connection. I am getting very slow transfers on large files ( >1gb ) and need to try some things. However, I am confused. Would smbmount use any settings in smb.conf? I've read that some changes to [global] in smb.conf may help and want to implement them. Thanks! <<JAV>>