Shooting the Yugoslav M49/57 Submachine Gun

The Yugoslav M49/57 submachine gun looks very similar to the Soviet PPSh-41, but it constructed quite differently, and has a much larger recoil spring. The question is, how will it shoot? Will it be fast and controllable like the Papasha or slower like the Sudayev?

Thanks to Marstar for letting me examine and shoot their M49/57!