@teh-g I had the similar problem as you. Couldn’t watch videos in full screen without a stuttering, games would stutter all time. I haven’t find solution online but through testing I found out that the culprit was Asus GPU Tweak 2.
Here’s my 2 cents. I would go for a concert of her favorite band. Even if you don’t listen to it. From my experience women love to spend some quality time together with their man, rather than get a usual gift.