{"action":"opened","issue":{"url":"https://api.github.com/repos/react-native-fellowship/react-native-blur/issues/46","labels_url":"https://api.github.com/repos/react-native-fellowship/react-native-blur/issues/46/labels{/name}","comments_url":"https://api.github.com/repos/react-native-fellowship/react-native-blur/issues/46/comments","events_url":"https://api.github.com/repos/react-native-fellowship/react-native-blur/issues/46/events","html_url":"https://github.com/react-native-fellowship/react-native-blur/issues/46","id":126852707,"number":46,"title":"Performance of BlurView","user":{"login":"marcoreat","id":15048404,"avatar_url":"https://avatars.githubusercontent.com/u/15048404?v=3","gravatar_id":"","url":"https://api.github.com/users/marcoreat","html_url":"https://github.com/marcoreat","followers_url":"https://api.github.com/users/marcoreat/followers","following_url":"https://api.github.com/users/marcoreat/following{/other_user}","gists_url":"https://api.github.com/users/marcoreat/gists{/gist_id}","starred_url":"https://api.github.com/users/marcoreat/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/marcoreat/subscriptions","organizations_url":"https://api.github.com/users/marcoreat/orgs","repos_url":"https://api.github.com/users/marcoreat/repos","events_url":"https://api.github.com/users/marcoreat/events{/privacy}","received_events_url":"https://api.github.com/users/marcoreat/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-01-15T11:08:41Z","updated_at":"2016-01-15T11:08:41Z","closed_at":null,"body":"I'm using multiple BlurView items in one view and I'm hitting performance problems.\r\n\r\nI have a list where each item contains: a scaled-down `<Image>`, a `<Blur View>` and [icons](https://github.com/oblador/react-native-vector-icons).\r\nWhen I scroll my view the perceived framerate drops significantly. Occasionally I see slight flickers in the `<BlurView>` items, as if they were being updated during scroll.\r\n\r\nThe FPS drops start being visible even in small lists (e.g. 6 elements). They occur both in the simulator and on the device. The issue happens when using `<ScrollView>` and with a `<ListView>` as well. I've experimented with the `shouldRasterizeIOS` [View property](https://facebook.github.io/react-native/docs/view.html#shouldrasterizeios), but couldn't get it to improve the situation."}}