The only solutions I've seen that even "come close" in the speed / accuracy comparison are unfair comparisons.
An example was posted by someone in another comment of a guy doing Python coding with Emacs using Dragon Dictation. In that example, the guy used over 2,000 custom "macros" to get to something close to his pre-RSI speeds. This sounds fantastic, but the speeds of a typer who has learned to leverage 2,000 custom macros would be an order of magnitude faster (imho) than someone dictating using similar macros.
An example was posted by someone in another comment of a guy doing Python coding with Emacs using Dragon Dictation. In that example, the guy used over 2,000 custom "macros" to get to something close to his pre-RSI speeds. This sounds fantastic, but the speeds of a typer who has learned to leverage 2,000 custom macros would be an order of magnitude faster (imho) than someone dictating using similar macros.