Update SplineComponent points in blueprint event tick to draw a projectile flying track

Hi, everyone!

I’m new to UE4 engine and making a FPS game right now.

I want to display a prediction spline of a projectile before it is thrown from character’s hand.

Character can move with projectile in it’s hand.

But when character is moving, the prediction spline cannot update with the animation movement of the hand.

In other words, the update of the spline is too slow for the character movement.

How can I solve this problem?