I tried another keyboard and it did the same thing.
Scenario
I am tying a letter. If it want the second "t" in letter to appear I have to stop for a second before typing the 2nd "t". If I want to space two times after the period I have to stop for a second... If I want to backspace the entire word out I cannot hold down the key. I would have to hit it once, wait a second, hit it again, and so on.