I needed a time scale for dots physics after a bit of digging found that in
StepPhysicsWorld.cs → OnUpdate()
multiplying the delta time with a scalar value is enough and seems to be stable so it would look something like this
Simulation.ScheduleStepJobs(new SimulationStepInput() {
...
TimeStep = Time.DeltaTime * PhysicsSettings.TimeScale,
...
} , ...
hopefully this will be added in the future, in my case storing values in a static class is good enough since those are global values for per simulation ( PhysicsSettings )