I am trying to optimize my scene which is almost 2m in polygons. Normally it shouldnt be hard to work with this scene with the PC am using. But suddenly the scene got so slow. I did the optimize option, clenaed the outliner, cleaned the hypeshade. But still the scene is so slow. When i select every object in mey scene there are some stuff left unselected in hypergraph. How can i delete this? I heard there was a script , but i cant find it on google. And if i delete these, will it help making the scene lighter?