Not at all. Storms slow down for a turn and when they altogether lose steering currents. The storms known for their devastating flooding were pokey or stalled over an area for an extended period.
Think Hurricane Harvey two years ago.
Of the 259 fatalities from Camille, 124 of them were from a single county in Central Virginia. Catastrophic flooding occurred there when the remnants of the hurricane stalled over the Blue Ridge mountains.
Folks need to get over the idea that wind speed is all that matters. With this storm though, the most damage may occur from storm surge over a multiple state area.