That sounds like an architecture issue. In 10 years I’ve used React for a wide variety of projects from digital publishing tools to realtime medical dashboards

That sounds like an architecture issue. In 10 years I’ve used React for a wide variety of projects from digital publishing tools to realtime medical dashboards to WebRTC-based videoconferencing apps with 3D graphics. I’ve never seen a build require anything like that much horsepower or time.