Here is a another tip for faster knitting - use great yarn. It doesn't have to be the most expensive, "indie" or hand dyed yarn. It needs to be nice & "bouncy" and plenty of commercial yarns are excellent. My top two favorite mid-priced yarns for socks are Hawthorne and Brown Sheep Sock.
The yarns I am currently using to knit socks (pictured above) are Hawthorne (the gray one) and West Yorkshire Spinners, which is also a great sturdy sock yarn just not as nice as Hawthorne, IMO.
For more tips to knit socks faster, click HERE or HERE or HERE or HERE