A person who stutters should* seek out ongoing speech therapy to analyze what they might do to manage their stutter better at any given time. Speed may or may not be an influental factor, but there are others things to take care of as well. -   --- _*: Like, if they want to do something about their stutter. There may be stutterers who are completely fine with their stutter, but for the most part, places like this are for people who are not completely fine with their stutter._