What would be the best body pose estimator for a body tracker?

Currently working on a body tracker in Unity using Mediapipe's Pose Landmarks detection. It went smooth until I actually started to test the 3D model's responsiveness, it is VERY twitchy, and janky. So, now I don't know what to do, the quality is super bad whenever I try to test with a model, but somehow if I use spheres, and lines, it will be more than fine.

I tried to increase the tracking, and detection confidence, and it did nothing, …

computervision detection mediapipe quality test unity