I’ve done similar things with React and SVG and I concur. As with scaling anything up using React, you need to be careful about how you structure your component

I’ve done similar things with React and SVG and I concur. As with scaling anything up using React, you need to be careful about how you structure your components so you can write shouldComponentUpdate everywhere you need it to get acceptable performance. That in turn means you have to be careful about how you represent the underlying data and any further data you derive from it to use when rendering your SVG. However, assuming those things have been done, I have found React+SVG to be a reasonably effective combination so far.