Capacity is the possible “power” you have on your servers, and CPU usage is just usage of that capacity:
From Bubble pricing page:
You can think of a capacity unit in Bubble as a fraction of a server CPU. In practice, it’s a weighted metric between various server resources that we update over time as we improve our systems to make Bubble more efficient.
Because every app has different patterns of behavior and processes data differently, different apps require different amounts of server capacity, even for the same number of users.
