Any way to use a better LOD System?

Trees and bushes that are already visable and are quite close fade in and out, it also happens with some other objects in the levels.

It is distracting and needs to be fixed and should be fixed. If it affects performance, well too bad, maybe the low end pc users can have stuff popping up but it should be made to work propperly for the people that can run it, which i am sure is a majority. There an option that allows me to configure that?

Any way to use a better LOD System?