i Have tried launch character but it is pretty jagged and it needs to be smooth
Add Force seems like an option Maybe? but by Simulating Physics that stuffs up the movement
Launch Character changes the movement mode to Falling, and it changes to Walking right away. That’s why it’s jagged.
You can Add Force to the character without it simulating physics, you just have to apply it to the Character Movement component, not to the capsule or anything else. And the force value should be quite high.
Plus, changing Ground Friction in the volume helps as well.
This is neat and looks convincing; does it hold up when you jump into it?
yes actually 
Different framerate will give different result?