Gravity follows the space just as light does nothing slows it down other than space curvature which doesn’t technically slows it down just can increase its path

Gravity follows the space just as light does nothing slows it down other than space curvature which doesn’t technically slows it down just can increase its path. Gravity cannot travel faster than light in vacuum traveling faster than light in a medium is possible and happens all the time in nuclear reactors for example. Since interstellar space isn’t empty light can lag slightly behind a gravitational wave but it does not affect the ultimate speed limit of the universe.