I have also speed problem with file transfer using konqueror to a Windows Server.
I've made some test:
Transfer a large file (700MB) from the KDE Linux Workstation to a Windows2003 Server
- using "smbclient" from the shell I achieve a transfer rate of ~8MByte/S (this is good for me)
- using Konqueror without mounting the share on the filesystem, on the Kio transfer window I see a speed of ~2.3MByte/S (but this is only an indicative value because the time to transfer the file is much higher than the time needed to transfer it at that speed, the real speed is lower)
- using Konqueror mounting the share on the filesystem, on the Kio transfer window I see a speed of ~1.1MByte/S (but, like the previous test, this is only an indicative value because the time to transfer the file is much higher than the time needed to transfer it at that speed, the real speed is lower)
How can reach the real speed of 8MByte/S (like smbclient) with KDE?