For those with Dashboard speed issues, ssh in and check to see that you aren’t getting errors on the nic interface.
For example, you don’t want to see any RX, TX packet errors on eth0:
MyBookLive:/etc# ifconfig -a
eth0 Link encap:Ethernet HWaddr xx:xx:xx:xx:xx:xx
inet addr:192.168.1.103 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::290:a9ff:feb3:72f9/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12460094 errors:0 dropped:0 overruns:0 frame:0
TX packets:6491176 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2768467156 (2.5 GiB) TX bytes:564439955 (538.2 MiB)
Interrupt:36
