Typing Derby 20K WPM bug

I was plaiyng typing derby and i finished the race at last sec
and game bugged and gave me 20k
I believe it have to do with lag since im playing on 100ping~ usually because of where i live
It probably allowed me to finish the race 1sec after the time was up or maybe less ,thats probably what caused the problem
Im assuming the timer resets to 90 sec instantly after the time is up thats why i got 20k+ wpm


When I want the typing achievements nerfed, then this bug happens. lol