Could you clarify the term twitching?
It is important for us to determine whether it is a Hardware or Software Problem.
Is the “Drone-twitching-movement” a rather precise back and forth or something that does occur sometimes when doing specific movements.
Maybe try to make a Video for us… that would help a lot
My “Quickfix” tips would be;
-Check if the Props are properly screwed on
-Check the Calibration and Orientation of your fc
-Recalibrate the Escs.
-(Cant imagine why this would be creating this Problem but…) Check if everything is isolated properly, check if Motors are warm, if yes check if the Motor screws are too long.