Using a mixture of the suggestions, swipe, and thumb typing on a touch qwerty I can write faster than I could on a keyboard, it's super easy. Even when I was practicing touch typing on a physical qwerty, my brain couldn't manage more than average 40wpm I don't think. Which is slow, if I remember. Much faster using a mixture of input styles depending on the word I am about to input. My mind pretty much instinctively knows which is gonna be the fastest method of the 3 at this point. I don't think limiting one's self to a single input style would make people like me any faster.