Painfully slow network copy speed
 

Mac A has a sparseimage on it used to hold the backup of Mac B. B connects to A via AirPort Extreme (signal strength: 3 out of 4). SuperDuper! is on B. The copy speed of a smart update is around 0.1MB/sec, sometimes a little higher. B can access the Web at "normal" speeds. I don't have any other apps running on B. Is it normal for network smart copy speeds to be so slow?

10.4.7
2.1.3
iMac flat panels

Smart Update should be faster than that if you're not making a lot of changes, sportbiker... but, wireless networks are inherently kinda slow (as are regular networks compared to a direct FireWire connection)...