Texture and mesh a mess in rhino versus source

exported a reduced faces mesh from Agisoft metashape.
It looks like the real thing in Agisoft, but a shiny mess in Rhino shaded, then choose rendered view which is correct viewing territory and somewhat better but certainly not as good as in source.
I just chose export from Agisoft,

see attached. click to view large.
I need the detail to plot things precisely in rhino. trouble is drawing and dimensions dont always show in rendered view so one cannot work as well in the better rendition mode.

what is wrong ? I tried again with jpg precision 12, seeing that it offered 6 (I usually choose max qlty) it made no difference at all though.