You must be running better software than me, last I checked my tongue cannot be actuated independent of my CPU.
For that matter, you can certainly write software that has poor upload speed that improves with processing power, regardless of your internet connection.
We all use slightly different forks from the same software.
I must be running my grandmother's fork, as she taught us: "Turn your tongue seven times before speaking. This way you'll have time to think if you ought to say the things you want to say.".
I think first and then I produce a whole sentence or paragraph. My text or speech is not improvised word for word as I progress. There is a small delay when I convert my French thoughts into English, but that's it.
For that matter, you can certainly write software that has poor upload speed that improves with processing power, regardless of your internet connection.