When crafting on a mobile device there is is no way of instant crafting. On computers like Windows 10 you can craft instantly, unless there is a way of doing it on mobile that I did not see. Crafting large amounts of stuff take minutes. Like in the picture shown one at a time. Ok after testing and looking at the ? button in the settings here are the results. I tried to double tap tap and hold, hold. And even thing you can thing of.