Having installed Arch on SSD my laptop is up and running in 4-5 seconds. Great but the WiFi connection is lagging by 15-20 seconds.
I'm using a saved WICD connection and deamon in rc.conf, fixed IP and IP6 disabled.
Is there anything I can do to make the WLAN connect faster?
You could try netcfg and systemd. I have seen some drastic improvements on a couple of machines. Aggressive parallelization may shave a few seconds off.
Your logs should give you a clue about why the connection time is so long.