Primer Stop Motion Animation applies a classic stop-motion visual effect to any skeletal mesh by throttling animation update rate and disabling frame interpolation - Optimizing the output, instead of alternate methods like adding 'pose snapshots' overhead.
https://www.fab.com/listings/9bb88393-603e-457f-9296-0b77715e7b6e
Drop the component onto any actor, tag your skeletal meshes, and instantly get stepped, choppy, quantized animation reminiscent of stop-motion films. Fully controllable from Blueprints at runtime.