All that really matters is the entry point size in modern application. I built an admin console for our company in react and it's downloaded and rendered in 220ms. People can make performant SPA's they just choose not to.
Is that in a single location? If so, then it's not really impressive. A good website loads fast even when the client is on the other side of the globe.
"Initial request to clickability" is definitely longer than it used to be.