Wrong, from what I read, the Russian torp is rocket powered and bleeds off some exhaust to form the bubble shroud.
No propeller.
Not, or barely maneuverable.
It was sluggish but the original concept was basically a giant superfast version of the Long Lance or other WW2 torpedoes. They didn’t have working homing or guidance either, which has the one advantage of not being jammable.
The Shkval 2 reportedly is much more maneuverable, incorporating vectored-thrust nozzles.
Clarification: The Shkval 1 was sluggishly manueverable, but that was part of the design brief. It didn’t matter much as it had no possible guidance system in 1977.