Can this be used as a real-time transcription or is it too slow for that?

Curious what anyone is using these days for a real-time transcription. It doesn't have to be perfect, but just good enough.

My kids watch some youtube vidoes where people will make a mod where it converts them talking to text then look for keywords and spawn a boss in Terraria if you say the wrong keyword etc.

I made a clone of that with the .NET System.Speech.Recognition library. It... works.. but my biggest problem is that #1 it waits until you are done speaking to translate to text on the callback, so there was too much of a delay for it to be fun.. the point is that it will be checking a stream of chatter. #2 is the recognition is pretty crap, I mean it's nearly good enough for my silly purpose but it's still pretty bad.