non buffered rendering like frame skipping

[Mirath-14]

when i use the non buffererd rendering on pc it goes little black and when i use the buffered rendering it be slow on pc...... but on the samsung when i play using non buffered rendering it goes like frame skipping black and white and when i put it on buffered rendering it goes good and little slow just that happened to me with the new updates i am using the last update 1173 ...... help