Ok despite Dassault call this community despite the fact it is not, it is just some IT guys in India doing the best they can to give support to Draftsigt users, I am giving this advice to other sailors experiencing poor performance in draftsight, clunky zoon in out, slow drawing and editing. Draftsight is not for georeferenced coordinates, it does not have maths engine powerful enough to digest them. Use some local temporal coordinates instead, for instance a local known geopoint, seems that dassault does not get the importance of georeferenced work