I use draftsight V1R6.0 on 64 bit Archlinux system .

The problem is that cursor/pointer  is so slow or lag when moving around the drawing, 

especially the line which include so many node. for example contour terrain, 

but moves at normal speed when turn off the layers which have so many node. .

I disabled mouse gesture and all selection settings < Entitiy Selection < Drafting options < User preferences <  options < tools menu, but still mouse is slow or lag on drawing...

Whenever new version come out, i tried. But give up using draftsight.

It is not still sovled for a long time.

How to solve it?