Topic: Fastest? Cartridge vs Internal Storage vs microSD

I was wondering what media would offer the fastest loading times.

Ranked:
1. Internal Storage
2. microSD (UHS-II) ?
3. Cartridge Speed ?

I think it's safe to assume that loading a game from internal storage would be fastest. I'm wondering if a cartridge would be faster than a UHS-II microSD card. Assuming the Switch even supports cards of that speed.

What do you guys think?

All three are solid state, so in theory could be the same.

Perhaps in theory, but in reality that's just not true at all. For example, take these two microSD cards from both ends of the scale. The SanDisk is 7x faster than the Sony.

Sony - SR64UYA/TQMN (cheap)
Sequential Read Speed: 39.6 MB/s

SanDisk Extreme PRO - SDSQXPJ-064G-ANCM3 (expensive)
Sequential Read Speed: 211.5 MB/s

(these are real word speeds, not rated speeds)

What I mean is, with just that info it is impossible to tell, in fact the quoted MicroSD cards could be the same speed in a switch as I have no idea what speeds it can read at.