Only DX 9 works properly (MSI gaming laptop)

[ing17]

For some weird reason only DX 9 works properly in fullscreen. When I try other backend the graphics seem choppy during fullscreen but the FPS shows it is at a constant 60 fps. I ensured that Ppsspp is using the dedicated GPU. I'm quite sure my i7 4710 HQ and GTX 860m is more than capable of running any PSP game at the native solution. Any solution?