Sadly at the rate youtube compress the video you won't have a crisp video.
The only way to really have a good quality video is to record using something like jpg motion or loseless but again, once encoded by youtube you'll end up with a pixelated video. And the more you move the more you'll notice it.
And lso shadowplay is not good enough for high quality videos since it records using VFR instead of CFR.
It also have some problems with chroma color