Part of that is that the entire OS, including the Store, runs on one CPU core. Makes sense - that’s how you open the store quickly to think, “should I buy this DLC?” and then change your mind. This is also why the background music for some games plays while you are browsing the Store. Games run on the remaining three CPU cores at all times.

A more technical reason for this was that this prevented the need to implement preemptive multitasking in the microkernel OS, which would have been very slow by comparison. (Yes, the Switch OS uses cooperative multitasking for itself, but with sandboxing for unruly games.)

Of course, running anything web-related on one ARM CPU core from 2015 is going to suck, regardless of the technical rationale.

Whilst those are all entirely valid technical reasons, I as a customer do not care at all and it is a bad experience. Not bad enough that it affects them financially, but just something that stands out on an otherwise incredibly polished product.