Slight Input Lag in SSBM

[Freywind]

I just tested it more to make sure I'm not going insane. I don't believe there is any noticeable input lag when I use the keyboard. I'm suspicious that the reason for this is that the game somehow interprets the analog stick input differently from the console, causing the input for a dash to register later. When I use the keyboard, the emulator registers a key press as analog stick 100% pressed, so the dash registers almost instantly. Honestly, it can't be more than a few frames of lag so it's not extremely critical. At this point I'm just curious to know what causes it.