How do i modify the input repeat event firing time?

I want to modify the time interval between the firing of pressed and firing of repeated.But i don’t find the way or source code.
How do i do that?

You can limit the firing like this:

My fault. I mean, the “IE_Repeat” event firing time interval.

Do you mean auto-fire?

No, this function fires with a delay(look the image).I want to modify this time interval.