I normally type around 110 WPM and have found I can hit 150+ sprints of a few seconds if I have real-time feedback on how quickly I'm typing without relying on

I normally type around 110 WPM and have found I can hit 150+ sprints of a few seconds if I have real-time feedback on how quickly I'm typing without relying on how quickly it feels like I'm typing. Unfortunately I don't know of any tools that go much further than that in providing useful feedback.