This isn't true, low spec gamer uses utterly ancient stuff and look at the results.
Notice what vulkan does?
If you don't like dog turds fine, but millions of consumers aren't really as picky as certain console gamers would like to argue. When something like minecraft or event GTA5 can dominate vs the current exceptional climate of heavy hitting graphical titles this argument needs to stop.
The priority will be what will nintendo realistically do to get 3rd parties involved. No point in putting this in a PM, but if Nvidia/AMd works with developers on games on PC I see no reason why nintendo as a platform holder can't grow up in this area when those two companies along with sony and ms do a pretty fucking bang up job. They should be getting ports up and running and if they don't have people who do better than some dude doing youtube videos or tweakers like myself they should be fired promptly. Shogmaster is right to ask for nintendo balls up and just say this is the ultimate portable.
You don't need magic sauce you just need to use vulkan and do a solid job on optimizing. Doom be it low spec machines or not using vulkan has some serious gains if we are talking performance.