Beginner question, importing from speedtree

I opened one of Speedtree Cinema’s trees in Speedtree for UE4, and exported it to UE4. The attached photos show the view in Speedtree, and in UE4. Is there a setting I need to change in UE4 to see the same level of detail as in Speedtree? Or is there a problem with what I’ve imported? Sorry for knowing so little about this, only started using UE4 yesterday.