I have the same exact GPU, and I can confirm that the drivers are pretty odd (For me, the newest driver couldn't change the driver, and the older preinstalled driver could but had some other fallback I can't remember. Even with Citra aside, getting proper drivers from your manufacturer would be a good idea, because the generic drivers aren't really meant for permenant use. Proper drivers would be more stable, and should have performance.
Exactly what brand laptop do you have? Mine is a Lenovo, so I got my drivers from their website.