from autocad help:
DRAGMODE controls the display of objects being dragged. When Drag mode is on, the image of an object is displayed as you drag it to another position. With some computer configurations, dragging can be time-consuming. Use DRAGMODE to suppress dragging.
0 - Does not display an outline of the object as you drag it
1 - Displays the outline of the object as you drag it only if you enter drag on the command line after selecting the object to drag
2 - Auto; always displays an outline of the object as you drag it