Depends what's on the dashboard and how the data has to be transformed for display. I've worked on several such dashboards and never had to use Web Workers to s

Depends what's on the dashboard and how the data has to be transformed for display. I've worked on several such dashboards and never had to use Web Workers to solve the performance issues, these were usually caused by UI rendering not optimized for loads of data. Now, the workers can help with rendering too, for example to render a chart off the main thread, but the libraries that support this usually hide the worker magic behind an API.