Webcam Tracking Shakes Slightly (Is this even an error or perfectly normal?

[pliant turret]

I've noticed when I look at my Webcam Tracking there is a Slight Shake on Nvidia Tracking.
This has a varying level of impact depending on what model I am using.
I have tested on a variety of Tracking Qualities and multiple webcams, and models. (See video). Is this slight shake something that's actually just normal? I wan't to check I don't have a an issue bottleneck I'm trying to adjust for further down from the actual problem.

I realized my lights weren't on when I started the recording, I turned those on mid recording in the third recording, that does have an impact but does not negate the shake.
Logitech Webcam seems to shake less than my Elgato Facecam, but it is still present.
I switched to Manual Parameter Calc.Mode which Denchi mentioned to do in a previous thread.
I have yet to adjust smoothing on the individual parameters on the model, I will apply this.
But I want to check im not applying a per model and parameter fix for a deeper issue.

Is the slight shake a normal thing? Or do I have a deeper problem I should be focused on?

tl;dr Do I actually have a problem or is some shaking in the Webcam Tracker / Nvidia Tracker totally normal and I just need to adjust parameters and smoothing to account for it?

You can see me moving to turn on the lights on this video.

[pliant turret]

Bumpu~

[ivory mural]

I would say that amount of jitter is normal, especially when lighting conditions aren't optimal.

VTS doesn't apply a lot of smoothing to the tracking data per default so people can decide for themselves how much smoothing they want to add to individual parameters.

Just looking at the last video, I don't really see much shaking visible on the model.

[pliant turret]

Thankuuu