be less aggressive about throttling notifications

routes/_actions/addStatusOrNotification.js

@@ -5,6 +5,7 @@ import { store } from '../_store/store'
 import { scheduleIdleTask } from '../_utils/scheduleIdleTask'
 import uniqBy from 'lodash/uniqBy'
 import uniq from 'lodash/uniq'
+import { isMobile } from '../_utils/isMobile'
 
 function getExistingItemIdsSet (instanceName, timelineName) {
   let timelineItemIds = store.getForTimeline(instanceName, timelineName, 'timelineItemIds') || []
@@ -70,10 +71,11 @@ async function processFreshUpdates (instanceName, timelineName) {
 }
 
 const lazilyProcessFreshUpdates = throttle((instanceName, timelineName) => {
-  scheduleIdleTask(() => {
+  const runTask = isMobile() ? scheduleIdleTask : requestAnimationFrame
+  runTask(() => {
     /* no await */ processFreshUpdates(instanceName, timelineName)
   })
-}, 5000)
+}, 3000)
 
 export function addStatusOrNotification (instanceName, timelineName, newStatusOrNotification) {
   addStatusesOrNotifications(instanceName, timelineName, [newStatusOrNotification])

routes/_actions/streaming.js

@@ -1,5 +1,4 @@
 import { TimelineStream } from '../_api/TimelineStream'
-import { scheduleIdleTask } from '../_utils/scheduleIdleTask'
 import { mark, stop } from '../_utils/marks'
 import { deleteStatus } from './deleteStatuses'
 import { addStatusOrNotification } from './addStatusOrNotification'
@@ -29,9 +28,7 @@ export function createStream (streamingApi, instanceName, accessToken,
         console.error("don't know how to handle event", msg)
         return
       }
-      scheduleIdleTask(() => {
-        processMessage(instanceName, timelineName, msg)
-      })
+      processMessage(instanceName, timelineName, msg)
     },
     onOpen () {
       if (onOpenStream) {