abstract:FilterKeys is a feature of Microsoft Windows. It is an accessibility function that tells the keyboard to ignore brief or repeated keystrokes, in order to make typing easier for users with hand tremors.
Mouseacceleration, pointertrails, FilterKeys and evenStickyKeyscancauseslightdelaysonsomesystems, as well as othercustom hotkeysoftware, so its worth disablingtheseifallelse fails.