Discount frozen foods chain Farmfoods has outperformed rivals to become the UK’s fastest-growing food retailer in the past six months, The Guardian reports. The news comes as many of the major UK supermarkets struggle with flat or sluggish growth. Based in Cumbernauld, Scotland, Farmfoods achieved sales in the 12 weeks to the 2nd February 44% higher than in the same period of the previous year, according to figures from Kantar …