Nestlé faces greater pressure to speed up change after activist investor Third Point stepped up its criticism of the world’s largest food company. The New York-based hedge fund sent a letter to Nestlé’s board and published a presentation online on Sunday calling for more urgent action and recommending steps it says could result in Nestlé doubling its earnings per share by 2022. The letter and presentation, published on a new Third Point website, come a year after the firm, run by billionaire investor Daniel Loeb, took a roughly $3 billion stake in the maker of KitKat bars and Perrier water.