[quickpurchase]

Turn all your graphics down and turn on lod cache settings.

Its likely  memory issue.

so far so good.

Here are the settings I'm using. I'll share with my friends to confirm they're working better as well.

(unchecked)enable HDR rendering & improve overall graphic quality
(unchecked) enable wet surface effects
(checked) disable rendering of objects when not visible
(checked) use low detail models on istance objects (LOD)
(checked) cache lod data only when necessary (lod streaming)

real time reflections -off
edge smoothing -off
transparent lightning quality - normal
grass quality - low
map resolution - high