more efficiency fixes

src/components/Sidebar/SidebarCalendarWeekWidget.tsx

@@ -20,7 +20,6 @@ import client from '@/services/client.service'
 import { registerSessionInteractivePrewarmListener } from '@/services/session-interactive-prewarm-bridge'
 import indexedDb from '@/services/indexed-db.service'
 import { CALENDAR_EVENT_KINDS, ExtendedKind } from '@/constants'
-import { appendCuratedReadOnlyRelays } from '@/pages/primary/SpellsPage/fauxSpellFeeds'
 import { CalendarDays, ChevronLeft, ChevronRight } from 'lucide-react'
 import { type Event } from 'nostr-tools'
 import { useCallback, useEffect, useMemo, useReducer, useState } from 'react'
@@ -69,7 +68,8 @@ export default function SidebarCalendarWeekWidget() {
         applySocialKindBlockedFilter: false
       }
     )
-    return appendCuratedReadOnlyRelays(base, blockedRelays).slice(0, SIDEBAR_CALENDAR_MAX_RELAYS)
+    /** Sidebar only: avoid prepending {@link READ_ONLY_RELAY_URLS} so idle shell does not open aggregator sockets. */
+    return base.slice(0, SIDEBAR_CALENDAR_MAX_RELAYS)
   }, [favoriteRelays, blockedRelays, relayList])
 
   const relayKey = useMemo(() => [...relayUrls].sort().join('|'), [relayUrls])

src/providers/FeedProvider.tsx

@@ -67,7 +67,10 @@ export function FeedProvider({ children }: { children: ReactNode }) {
     [favoriteRelays, relaySets]
   )
 
-  /** Home Notes/Gallery stay focused: favorites/defaults plus the mixed trending relay. */
+  /**
+   * Mixed trending slice (nostrarchives / Wisp-style feed) so the home timeline isn’t only the user’s
+   * graph — keeps a finger on what the wider network is surfacing, alongside favorites / NIP-65.
+   */
   const primaryExtraRelayUrls = useMemo(() => [buildWispTrendingNotesRelayUrl()], [])
 
   /** Home Replies widen to relays that can surface inbox/reply context. */
@@ -182,6 +185,8 @@ export function FeedProvider({ children }: { children: ReactNode }) {
   )
   const lastRelayInitDebugKey = useRef('')
   const lastHadFavoriteRelaysRef = useRef<boolean | null>(null)
+  const relayUrlDebounceTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+
   useEffect(() => {
     const initKey = [
       isInitialized ? '1' : '0',
@@ -194,29 +199,47 @@ export function FeedProvider({ children }: { children: ReactNode }) {
       replyExtraRelayLayers.httpRelayUrls.length,
       blockedRelays.length
     ].join('\x1e')
-    if (initKey !== lastRelayInitDebugKey.current) {
-      lastRelayInitDebugKey.current = initKey
-      logger.debug('FeedProvider relay init:', {
-        isInitialized,
-        favoriteRelays: favoriteRelays.length,
-        relaySets: relaySets.length,
-        relaySetRelays: favoriteFeedRelayUrls.length - favoriteRelays.length,
-        inboxRelays: replyExtraRelayLayers.inboxRelayUrls.length,
-        outboxRelays: replyExtraRelayLayers.outboxRelayUrls.length,
-        cacheRelays: replyExtraRelayLayers.cacheRelayUrls.length,
-        httpRelays: replyExtraRelayLayers.httpRelayUrls.length,
-        blockedRelays: blockedRelays.length
-      })
-    }
 
-    const hasFavoriteRelays = favoriteFeedRelayUrls.length > 0
-    const prevHad = lastHadFavoriteRelaysRef.current
-    lastHadFavoriteRelaysRef.current = hasFavoriteRelays
-    if (!hasFavoriteRelays && prevHad !== false) {
-      logger.debug('FeedProvider: no favorite or relay-set relays, using defaults')
+    const flush = () => {
+      if (initKey !== lastRelayInitDebugKey.current) {
+        lastRelayInitDebugKey.current = initKey
+        logger.debug('FeedProvider relay init:', {
+          isInitialized,
+          favoriteRelays: favoriteRelays.length,
+          relaySets: relaySets.length,
+          relaySetRelays: favoriteFeedRelayUrls.length - favoriteRelays.length,
+          inboxRelays: replyExtraRelayLayers.inboxRelayUrls.length,
+          outboxRelays: replyExtraRelayLayers.outboxRelayUrls.length,
+          cacheRelays: replyExtraRelayLayers.cacheRelayUrls.length,
+          httpRelays: replyExtraRelayLayers.httpRelayUrls.length,
+          blockedRelays: blockedRelays.length
+        })
+      }
+
+      const hasFavoriteRelays = favoriteFeedRelayUrls.length > 0
+      const prevHad = lastHadFavoriteRelaysRef.current
+      lastHadFavoriteRelaysRef.current = hasFavoriteRelays
+      if (!hasFavoriteRelays && prevHad !== false) {
+        logger.debug('FeedProvider: no favorite or relay-set relays, using defaults')
+      }
+
+      updateFeedRelayUrls()
     }
 
-    updateFeedRelayUrls()
+    if (relayUrlDebounceTimerRef.current) {
+      clearTimeout(relayUrlDebounceTimerRef.current)
+    }
+    relayUrlDebounceTimerRef.current = setTimeout(() => {
+      relayUrlDebounceTimerRef.current = null
+      flush()
+    }, 80)
+
+    return () => {
+      if (relayUrlDebounceTimerRef.current) {
+        clearTimeout(relayUrlDebounceTimerRef.current)
+        relayUrlDebounceTimerRef.current = null
+      }
+    }
   }, [isInitialized, favoriteRelaysIdentity, blockedRelaysIdentity, replyExtraRelaysIdentity, updateFeedRelayUrls])
 
   return (

src/services/client.service.ts

@@ -483,7 +483,15 @@ class ClientService extends EventTarget {
 
     if (!this.sessionPrewarmBaseCompleted) {
       this.sessionPrewarmBaseCompleted = true
-      fastTasks.push(this.prewarmProfileSearchIndexFromIdb(), this.fetchNip66RelayDiscovery())
+      fastTasks.push(this.prewarmProfileSearchIndexFromIdb())
+      /** NIP-66 discovery hits extra relays; defer so first feed/session work is not competing for sockets. */
+      if (typeof window !== 'undefined') {
+        window.setTimeout(() => {
+          void this.fetchNip66RelayDiscovery()
+        }, 12_000)
+      } else {
+        void this.fetchNip66RelayDiscovery()
+      }
     }
 
     if (fastTasks.length === 0 && !options.pubkey) {

src/services/indexed-db.service.ts

@@ -811,35 +811,53 @@ class IndexedDbService {
     })
   }
 
-  async iterateProfileEvents(callback: (event: Event) => Promise<void>): Promise<void> {
+  /**
+   * Loads all cached kind-0 rows in one synchronous cursor pass (no `await` inside `onsuccess`, which
+   * would risk inactive transactions), then invokes `callback` in chunks with `requestAnimationFrame`
+   * yields so FlexSearch indexing does not monopolize the main thread.
+   */
+  async iterateProfileEvents(callback: (event: Event) => void | Promise<void>): Promise<void> {
     await this.initPromise
     if (!this.db) {
       return
     }
 
-    return new Promise<void>((resolve, reject) => {
-      const transaction = this.db!.transaction(StoreNames.PROFILE_EVENTS, 'readwrite')
+    const events = await new Promise<Event[]>((resolve, reject) => {
+      const out: Event[] = []
+      const transaction = this.db!.transaction(StoreNames.PROFILE_EVENTS, 'readonly')
       const store = transaction.objectStore(StoreNames.PROFILE_EVENTS)
       const request = store.openCursor()
       request.onsuccess = (event) => {
-        const cursor = (event.target as IDBRequest).result
-        if (cursor) {
-          const value = (cursor.value as TValue<Event>).value
-          if (value) {
-            callback(value)
-          }
-          cursor.continue()
-        } else {
-          transaction.commit()
-          resolve()
+        const cursor = (event.target as IDBRequest).result as IDBCursorWithValue | null
+        if (!cursor) {
+          resolve(out)
+          return
         }
+        const value = (cursor.value as TValue<Event>).value
+        if (value) out.push(value)
+        cursor.continue()
       }
-
-      request.onerror = (event) => {
-        transaction.commit()
-        reject(event)
+      request.onerror = () => {
+        reject(request.error ?? new Error('iterateProfileEvents: cursor failed'))
       }
     })
+
+    const yieldToMain = () =>
+      new Promise<void>((resolve) => {
+        if (typeof requestAnimationFrame === 'function') {
+          requestAnimationFrame(() => resolve())
+        } else {
+          setTimeout(resolve, 0)
+        }
+      })
+
+    const chunkYieldEvery = 150
+    for (let i = 0; i < events.length; i++) {
+      await Promise.resolve(callback(events[i]!))
+      if (i > 0 && (i + 1) % chunkYieldEvery === 0) {
+        await yieldToMain()
+      }
+    }
   }
 
   async putFollowingFavoriteRelays(pubkey: string, relays: [string, string[]][]): Promise<void> {