title: React render recursively is very slow for many levels, is Parallelism available?
body: <p>I have a tree with 12 levels and contains a lot of branches. and I'm rendering them recursively, the question if each node has many branches. Can I render each branch in <strong>parallel</strong>?</p>
  <p>Parallel: no need to wait for other branches to rendered in the same node</p>
  <p>PS: If I can't do the parallel, Can I update the dom after each vertex, so no need to wait until all vertices are rendered?</p>
  <p>PS: I'm rendering 600 components in 12 levels, which leads to browser freezing.</p>