After installing the pie Ui in my galaxy note 8 my life turns into a helll ,now I can't play pubg and can't operate medium level gpu consuming apps .. if I using gpu consuming app like pubg, filmorago phone turns off without any notifications just gone blackout ,i was very happy with oreo UI thats why I downgraded to oreo 8.0 again but unfortunately no result , I don't know what to do? this is my most favorite phone but I'm really disappointed for the update . sorry for my bad English. Can any one help me ? I lost my way .