Various comments and links throughout the discussion of this post indicate that the problem is a mix of the sheer number of nodes and css. It has nothing to do with React or being a React SPA, which it's also not, unless you have some proof otherwise.
bythreads|6 months ago
Now you CAN so it so that is not the case, but tbh i have never seen that in the wild -
troupo|6 months ago
Edit: here's a good investigation on a real-enough app https://www.developerway.com/posts/tailwind-vs-linaria-perfo...