Group::ChildrenController#index.json / loading a group page is slow
### Summary Even if the group page has been visited before and not changed meanwhile, it loads very slow (6–10 seconds). ### Steps to reproduce - open group page ### Example Group https://gitlab.com/gitlab-org ### What is the current *bug* behavior? Group page loads slow despite the Ajax call returning `304 Not Modified`: ![slow-group-page](/uploads/1e68c12f161edee5df0b2dc4470b8b60/slow-group-page.mp4) ### What is the expected *correct* behavior? In my opinion a page that has not modified should load in less than a second.
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