How to optimize Laptop performance

[KingHass85]

Hello there guys. I just purchased a gaming laptop and I have an odd situation where, all games run at 60 FPS while plugged in with my charger for it, but as soon as I unplug it, it goes down to 30 FPS I've changed my power settings to high performance, went into nvidia control panel and set dolphin to use my GTX960M on high performance, and still didn't work. My processor is a 5th gen i7 5700HQ at 2.7 GhZ. I plan on using dolphin to play every gamecube exclusive. Any help would be greatly appreciated. Thank you.