[This example](https://codesandbox.io/s/1zn2o513pq) presents a huge performance drop between React 16.2 and React 16.3.

In investigated it and noticed several things:

- Perfomance drop is only visible using development bundle
- This is not related to styled-components (a simple div presents the same problem)
- I tried to investigate in performance tab of Chrome dev tools and I noticed that I get React measures even without "?react_perf"
- React Tree Reconciliation seems very long, do not know why

It is not a big problem for me, but it looks weird, so I decided to [share it on Twitter](https://twitter.com/neoziro/status/979756579296817154),  then @gaearon [invited me to submit an issue about it](https://twitter.com/dan_abramov/status/980036013518139398).


case ClassComponent:
          const ctor = fiber.type;
          const instance = fiber.stateNode;
          if (
            typeof ctor.getDerivedStateFromCatch === 'function' ||
            (typeof instance.componentDidCatch === 'function' &&
              !isAlreadyFailedLegacyErrorBoundary(instance))
          ) {
            scheduleCapture(sourceFiber, fiber, value, expirationTime);
            return;
          }
          break;
        
        case HostRoot:
          scheduleCapture(sourceFiber, fiber, value, expirationTime);