Hopeless and horrible audio on Samsung Galaxy s5

[Eurofire]

I recently installed PPSSPP on Windows. Works fine. Installed it on Android and graphics are great, but sound is awful!! The audio is almost always choppy. I read dozens of forums and kept adjusted settings. Nothing improves it. Is it just my device? I thought the Samsung Galaxy s5 was fairly powerful, but perhaps not.... ?? Besides changing settings in PPSSPP, is there anything else that can be done to address this?