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About the drifting of the holograms, holograms that are at different depths from the focus point may appear offset from the real world. For more information, please refer to https://zcusa.951200.xyz/en-us/windows/mixed-reality/develop/advanced-concepts/mixed-reality-capture-overview - what-to-expect-when-mrc-is-enabled-on-hololens.
To improve this problem, try setting the focus point or enabling Render from the PV camera. For more details, please refer to https://zcusa.951200.xyz/en-us/windows/mixed-reality/develop/advanced-concepts/mixed-reality-capture-overview - enabling-improved-alignment-for-mrc-in-your-app.
To opt in to rendering from the PV Camera when using MRTK 2, enable the Windows Mixed Reality Camera Settings provider and check Render from PV Camera.
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