Some key points from the video
Runs at 1080p in docked mode (occasionally drops to 900p during intense scenes) and 720p in handheld mode.
stable 30 FPS in Docked mode, but some drops to the mid 20s in handheld mode during scenes with heavy effects.
As series tradition, theirs some frame pacing issues
Some effects now have a lower resolution than the 360 version
almost none of the graphical improvements from the other versions made it into the Switch version
Only 3.9 GB
Audio has compression issues.
A lot more in the video so I do encourage you to watch it.