> developers don't taking any time to optimize, lazy load, cache, minimize dependencies...
I built much more performant apps without lazy loading or caching when using html and a sprinkle of JS.
Exactly. If it's a common enough occurrence that most React SPA's are slow and bloated, it may not be the framework's fault, but if changing to a simpler framework makes it better, then it's just a semantic argument
We built a document management system as React SPA which is very performant.
Key: when user clicks on something, this causes 0 to 1 HTTP requests.
We didn’t do lazy loading or caching either.