The Man That Created Street Fighter: Takashi Nishiyama Interview at 1up

[GohanX]

I also didn't play SF1 until well after the release of part 2. It's so horrible, I love playing the Turbo CD version once in a while. Even my wife said it looked like shit.

[jyoung]

I played Street Fighter at a local batting cage once a few years after SF II came out.

I thought the buttons on the cabinet were broken or something since none of my fireballs or dragon punches ever came out.

[GohanX]

Nope, that's SF1, the cab was probably fine.

[gameoverDude]

You could have all characters in vs mode and just ryu/ken for story mode, but the game really needed a new engine.
It just isn't very fun to play, and it's so rough around the edges that it seems like a beta. The jumps don't even follow a parabolic trajectory, it's just a triangle.
Yie-ar Kung Fu shits all over SF1.

The punches and kicks in SF1 do seem slightly laggy- probably because you have to let off the button to do the move. YAKF is definitely faster paced than SF1- you get the joystick/button combo in, out comes the move- right away. I once got bulldozed by Lee while trying to Shoryuken him.