Resolution means nothing especially when there are UHD options out there. You don't turn optimus on by going to the bios. You press a button that triggers the mux switch....or if it's without, then it's automaticly on. Don't know where you got the BIOS part from. Can you tell me what game you're playing? maybe upload a youtube video or screen. I'd be interested. Well that might be the thing, most on this forum live in the US and have terrible experience, maybe the portugese divsion knows whats up.