How were the Victorians so fast at knitting socks ,, A pair of socks in half an hour on a CSM

Have you ever heard of the Circular Knitting Machine (CSM) While I thought it was a fantastic tool for knitting socks quickly it turns out the Victorians came up with many more things you could knit with one CSM Machine DeanandBeansSockMachines Green Leaf Sweater Pattern: Yarn (affiliate link): Blue Rainbow Sweater Yarn (affiliate link): Pattern (free ): CSM Manuals My Ot