Standard Flight Model (SFM) jittering

[Sérvalpilot]

With modded aircraft I noticed that the plane gets jittery when performing a high angle-of-attack maneuver, most noticeable in a barrel roll. It gets disorienting, especially in VR. I'm not sure a track file would show this kind of behavior.

[Sérvalpilot]

This is especially noticeable when stalling with the nose straight up (~90 degrees). At this angle in a stall, all the plane's rotational movement abruptly stops and then awkwardly jitters downwards as the plane gains speed while falling.