If you have no engines, then you might have that little accessory windmill which drops down and provides hydraulic power for you to manipulate the planes control surfaces.
I would suspect that with dimished hydraulics, the plane wouldn't be as responsive and the controls would be really mushy.
And as you got lower and slower that little wind mill gadget spins even slower and produces even less hydraulic pressure, so there would be quite the lag time between a control input and the plane's response. So just when it is most critical to have a responsive aircraft, it would be the least responsive/worst handling.
That is assuming that there isn't some auxiliary motor or APU spinning up the hydraulic pump, and that whatever caused the engine(s?)to shut down didn't already take out the hydraulic lines.