Touch Function Spacebar Bug

[Maxrio]

There is an issue on this website that after you complete the speed test once and then press the repeat button by using the touch function on the screen, you sometimes skip over words when using the spacebar or even the shift button. One fix for this would be to implement that you could press the repeat button by using the spacebar or by looking into the issue further.
Anyway, I would really appreciate a fix for this issue, thanks in advance!