Earlier quoted context omitted.
I'm in a weird position there. I've recently decided on react for most of our frontend in the future because of all the technical advantages this offers and the productivity benefits I see, but I still harbor reservations against react because in practice I've rarely seen react pages that feel snappy and fast, rather than choppy and slow.
Interesting observation, b/c one of the original value propositions of React's virtual dom model was faster rendering than most other frontend frameworks at the time. I wonder if it's gotten so complicated it lost that? If so, there are a number of other intentionally lightweight virtual dom frontend frameworks. Mithril, Riot, Preact, virtual-dom all come to mind, and there are a probably a few more.
tl;dr Don't blame tools but their usage