Tiled GPU perf warning?

Hi, ive been loading up my unity recently, and have come accross this error:
“Tiled GPU perf. warning: RenderTexture color surface (0x0) was not cleared/discarded, doing
UnityEditor.DockArea:OnGUI()”

I’ve been looking around, but haven’t found any help… how can i fix this??

Edit → Graphic Emulation → No Emulation