Hi easydigisoft,
This sounds like a combination of your GCode and Trajectory Planner settings (I assume you are using KMotionCNC).
3D paths must use small line segments. If the line segments form angles bigger than the BreakAngle then the motion will stop.
Angles less than the BreakAngle will be "rounded" according to your settings. If you do not allow much "rounding" then the motion will still need to nearly stop to make the tight curve.
Post some GCode and your settings and we can make some
recommendations.
Your Plots look reasonable except Z seems a bit unstable. But the moves you plotted never reach max acceleration or velocity so we can't tell if your acceleration and velocity limits are reasonable. You also did not include your configuration settings.
Regards
TK
