When you click on the Performance tab, as well as Customer & Suppliers you can also see some dashboards.
When you create a new dashboard, it will only appear on the Performance page when you manually add it there.
Create a new dashboard, or click to edit an existing dashboard.
Click Add to Performance area.
📎NOTE: You can only add published dashboards to the Performance area. If it is still a draft, you're prompted to publish the dashboard to be able add it there.
Once done, it now says Added to Performance area.
You also see it at the top of your Performance page.