I expect that the NatSpeak add-in, if it is for Dragon Naturally Speaking, is extensive. I agree with Andrew; disable others and see if that makes a difference. Sometimes these do not play well together.

I've always found that I can type accurately much faster than voice recognition can pick it up. That was true even when I was using a live transcriptionist to type my dictation.
I will use voice to text when I am on the go and can't type. I always have to clean up afterward.