Comparison of major AR frameworks in terms of Tracking 'jitter' or shakiness

Has anyone done or is aware of a comparison of the major AR frameworks in terms of motion tracking 'jitter'?

In tests so far with Vuforia, with a static Tracking image and locked down camera, there is a noticeable amount of random shakiness or 'jitter' to the tracked virtual object. Trying to find out ways to eliminate or at least reduce this since it will spoil the illusion (life size virtual car in a showroom).

Any suggestions or feedback greatly appreciated!