Relightable Gaussian Codec Avatars are very, very far from your off-the-shelf splatting tech. It's fair to say that this paper is more about a way of generating more efficiently, but in the original paper from the codec avatars team (https://arxiv.org/pdf/2312.03704) they required a A100 to run at just above 60fps at 1024x1024.

Nothing here seems to have moved that needle.