"Yes, I've heard the reactions of various Nintendo players to the Game Key Cards. I certainly understand their perspective. I can understand what might bother them, why they might not like them, and I really do. But among developers, the discussion about the format might be a little different than fans might expect.
Perhaps the biggest issue for developers is, certainly for people like us who are developing high-end HD games, is the loading speed, because if you compare that to an [SSD] drive and the speed you get from that when loading, it's inferior. So that's really the bigger problem when it comes to developing games, high-end games for the Switch 2, and what's possible with it.
This is just my personal opinion, but I would like it if Nintendo fans understood the key cards and perhaps accepted them as part of the gaming culture on the Switch because they offer more possibilities. It's an option that not everyone needs to use, but it's another way to make the games available to fans, and I think we could miss opportunities if we didn't have that option, because there might be people who wouldn't be able to play the game otherwise.
I really understand why people are negative about it, and there are good reasons and arguments for it. But if people are more accepting of it, I think there are also advantages, and from a developer's perspective, it allows us to do things we might not otherwise do."
https://x.com/Stealth40k/status/1971149719830225046

PS5: 5.5 GB/s
SX: 2.4 GB/s
I can understand that games designed for nvme drives can have issues loading things (and not just loading screens) from the much slower Switch 2 cartridges.
But the same goes for Blu Rays, which is why you install most of the game from the disc unto the internal storage, and read most of the crucial data from there.
So why not do the same on Switch 2?
Its internal storage speed is close to Xbox Series S.










