Sure, when I click to move it seems like it takes a fraction of a second for the character start moving. This becomes more apparent when the player moves horizontally for some time and let go the button, because players can see the character moving for a brief time without any button pressed.
I'm playing with a keyboard, so it's a bit weird, it should stop immediately after I release the button. Same thing for the dash, it looks like there's a small delay.
Maybe it's related to the animation or you're adding up the input and reducing it in multiple frames instead of setting it to zero.