I’m not sure, but the reasons for being “wobbly” are pretty interesting: …stackexchange.com/…/why-do-3d-models-on-the-play…

If I was deigning an emulator, I’d try to match the behavior of the original system as closely as possible, since people designing a program for that system might have depended on any behavior they observed (intentionally or unintentionally), so I’d keep the “wobble” (or provide a way to disable it, but keep it enabled by default).