VAMP - Notification events with begin, tick and end that can adjust speed anytime
The notification system is only used for skeletal meshes in Unreal Engine. The Vertex Animation Plugin come with its own notification system that can use the events that you setup in your skeletal mesh animations.
This video demonstrates changing the animation speed during playback and running events. You can use these events reliable to fire your events like footsteps, projectiles and everything you want events driven by the animation system!