I have a side question. If gravity (i.e. warping of space time) propagates at the speed of light. Then does that mean that the Alcubierre warp drive is fundamen

I have a side question. If gravity (i.e. warping of space time) propagates at the speed of light. Then does that mean that the Alcubierre warp drive is fundamentally incapable of supra-light speeds?