Your typing speed is almost irrelevant for code velocity especially if you use an IDE with code completion. Although it might be useful for writing documents such as technical design docs, your level of performance would have little to do with your typing speed. This skill would fall into the 20% instead of the 80% of causes that would drive your performance (see <https://en.wikipedia.org/wiki/Pareto_principle>). Exception made if your typing skill is close to 0, which is not the case, focus your attention on more relevant skills.