diff --git a/src/PageManager.tsx b/src/PageManager.tsx
index c2f8e831..ee4fae92 100644
--- a/src/PageManager.tsx
+++ b/src/PageManager.tsx
@@ -14,6 +14,8 @@ import { NavigationService } from '@/services/navigation.service'
 import { ImwaldBrandBar } from '@/assets/Logo'
 import LiveActivitiesStrip from '@/components/LiveActivitiesStrip'
 import NoteDrawer from '@/components/NoteDrawer'
+import { PROFILE_SECONDARY_PANEL_DEFER_MS } from '@/constants'
+import { extendProfileNetworkDeferral } from '@/lib/profile-batch-coordinator'
 import client from '@/services/client.service'
 import noteStatsService from '@/services/note-stats.service'
 import { navigationEventStore } from '@/services/navigation-event-store'
@@ -2172,6 +2174,7 @@ export function PageManager({ maxStackSize = 5 }: { maxStackSize?: number }) {
   useLayoutEffect(() => {
     noteStatsService.setBackgroundStatsPaused(primaryFrozen)
     if (primaryFrozen) {
+      extendProfileNetworkDeferral(PROFILE_SECONDARY_PANEL_DEFER_MS)
       client.interruptBackgroundQueries()
     }
   }, [primaryFrozen])
diff --git a/src/components/NoteStats/ZapButton.tsx b/src/components/NoteStats/ZapButton.tsx
index 652861f2..41ffb7ce 100644
--- a/src/components/NoteStats/ZapButton.tsx
+++ b/src/components/NoteStats/ZapButton.tsx
@@ -41,15 +41,49 @@ function formatAmount(amount: number) {
   return `${Math.round(amount / 100000) / 10}M`
 }
 
+type ZapRecipientResolveResult = {
+  profile: TProfile | null
+  profileEvent: Event | undefined
+  paymentInfo: ReturnType<typeof getPaymentInfoFromEvent> | null
+}
+
+const zapRecipientResolveByPubkey = new Map<string, Promise<ZapRecipientResolveResult>>()
+
+function feedProfileRowSyncKey(
+  profile: TProfile | undefined | null,
+  pendingInFeed: boolean
+): string {
+  if (!profile) return pendingInFeed ? 'p:wait' : 'p:none'
+  return [
+    profile.batchPlaceholder ? 'ph' : 'ok',
+    profile.username ?? '',
+    profile.avatar ?? '',
+    profile.npub ?? ''
+  ].join('\x1e')
+}
+
 /** Avoid one metadata + payment REQ per visible note while feed profile batch runs. */
 async function resolveZapRecipientData(
   authorPubkey: string,
   feedProfile: TProfile | undefined | null
-): Promise<{
-  profile: TProfile | null
-  profileEvent: Event | undefined
-  paymentInfo: ReturnType<typeof getPaymentInfoFromEvent> | null
-}> {
+): Promise<ZapRecipientResolveResult> {
+  const pk = authorPubkey.toLowerCase()
+  const inFlight = zapRecipientResolveByPubkey.get(pk)
+  if (inFlight) return inFlight
+
+  const run = resolveZapRecipientDataBody(pk, feedProfile).finally(() => {
+    if (zapRecipientResolveByPubkey.get(pk) === run) {
+      zapRecipientResolveByPubkey.delete(pk)
+    }
+  })
+  zapRecipientResolveByPubkey.set(pk, run)
+  return run
+}
+
+async function resolveZapRecipientDataBody(
+  authorPubkey: string,
+  feedProfile: TProfile | undefined | null
+): Promise<ZapRecipientResolveResult> {
   const cachedFeed =
     feedProfile && !feedProfile.batchPlaceholder ? feedProfile : null
   const deferNetwork = shouldDeferPerPubkeyProfileNetwork(authorPubkey)
@@ -114,6 +148,10 @@ function ZapPaymentMethodsButton({ event, hideCount = false, noteStats }: ZapBut
   const feedProfile = feedProfiles?.profiles.get(authorPubkey)
   const feedProfileRef = useRef(feedProfile)
   feedProfileRef.current = feedProfile
+  const feedProfileSyncKey = feedProfileRowSyncKey(
+    feedProfile,
+    Boolean(feedProfiles?.pendingPubkeys.has(authorPubkey))
+  )
 
   const [disable, setDisable] = useState(true)
   const [tipPaymentData, setTipPaymentData] = useState<RecipientZapPaymentData | null>(null)
@@ -144,7 +182,7 @@ function ZapPaymentMethodsButton({ event, hideCount = false, noteStats }: ZapBut
     if (isSelf) return
     if (!feedProfile || feedProfile.batchPlaceholder) return
     applyTipAvailability(feedProfile, null, null)
-  }, [isSelf, feedProfile, feedProfiles?.version, applyTipAvailability])
+  }, [isSelf, feedProfile, feedProfileSyncKey, applyTipAvailability])
 
   useEffect(() => {
     if (isSelf) {
@@ -167,7 +205,7 @@ function ZapPaymentMethodsButton({ event, hideCount = false, noteStats }: ZapBut
     return () => {
       cancelled = true
     }
-  }, [authorPubkey, isSelf, feedProfiles?.version, applyTipAvailability])
+  }, [authorPubkey, isSelf, feedProfileSyncKey, applyTipAvailability])
 
   const handleOpenPaymentMethods = (e: React.MouseEvent) => {
     e.stopPropagation()
@@ -248,6 +286,10 @@ export function ZapButtonWithStats({ event, hideCount = false, noteStats }: ZapB
   const feedProfile = feedProfiles?.profiles.get(authorPubkey)
   const feedProfileRef = useRef(feedProfile)
   feedProfileRef.current = feedProfile
+  const feedProfileSyncKey = feedProfileRowSyncKey(
+    feedProfile,
+    Boolean(feedProfiles?.pendingPubkeys.has(authorPubkey))
+  )
 
   const [disable, setDisable] = useState(true)
   const [canLightningZap, setCanLightningZap] = useState(false)
@@ -289,7 +331,7 @@ export function ZapButtonWithStats({ event, hideCount = false, noteStats }: ZapB
     if (isSelf) return
     if (!feedProfile || feedProfile.batchPlaceholder) return
     applyTipAvailability(feedProfile, null, null, true)
-  }, [isSelf, feedProfile, feedProfiles?.version, applyTipAvailability])
+  }, [isSelf, feedProfile, feedProfileSyncKey, applyTipAvailability])
 
   useEffect(() => {
     if (isSelf) {
@@ -314,7 +356,7 @@ export function ZapButtonWithStats({ event, hideCount = false, noteStats }: ZapB
     return () => {
       cancelled = true
     }
-  }, [authorPubkey, isSelf, feedProfiles?.version, applyTipAvailability])
+  }, [authorPubkey, isSelf, feedProfileSyncKey, applyTipAvailability])
 
   const handleZap = async () => {
     try {
diff --git a/src/constants.ts b/src/constants.ts
index da632457..20daffdc 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -269,6 +269,13 @@ export const PROFILE_BATCH_NETWORK_LOAD_TIMEOUT_MS = 12_000
  */
 export const PROFILE_BATCH_POST_COOLDOWN_MS = 90_000
 
+/**
+ * While a note (or other heavy secondary panel) is open, block per-row metadata/payment relay REQs
+ * on the feed behind it — {@link ZapButton} must not re-fetch every author when thread batch bumps
+ * {@link NoteFeedProfileContext.version}.
+ */
+export const PROFILE_SECONDARY_PANEL_DEFER_MS = 120_000
+
 /**
  * Hex-id / replaceable-coordinate note lookup ({@link EventService.tryHarderToFetchEvent}, big-relays dataloader).
  */
diff --git a/src/lib/profile-batch-coordinator.ts b/src/lib/profile-batch-coordinator.ts
index 095d7018..0e91281d 100644
--- a/src/lib/profile-batch-coordinator.ts
+++ b/src/lib/profile-batch-coordinator.ts
@@ -8,6 +8,8 @@ import { PROFILE_BATCH_POST_COOLDOWN_MS } from '@/constants'
 
 const awaitingBatch = new Set<string>()
 const batchCooldownUntil = new Map<string, number>()
+/** Blocks all per-pubkey metadata/payment relay traffic (e.g. while a note panel is open). */
+let globalProfileNetworkDeferUntil = 0
 
 function norm(pk: string): string {
   return pk.trim().toLowerCase()
@@ -47,8 +49,18 @@ export function isPubkeyInProfileBatchCooldown(pubkey: string): boolean {
   return true
 }
 
-/** True while batch is in flight or during the post-batch cooldown window. */
+/** Extend the global defer window (e.g. opening a note panel — avoids re-storming the whole feed). */
+export function extendProfileNetworkDeferral(durationMs: number): void {
+  if (durationMs <= 0) return
+  const until = Date.now() + durationMs
+  if (until > globalProfileNetworkDeferUntil) {
+    globalProfileNetworkDeferUntil = until
+  }
+}
+
+/** True while batch is in flight, post-batch cooldown, or a global defer window is active. */
 export function shouldDeferPerPubkeyProfileNetwork(pubkey: string): boolean {
+  if (Date.now() < globalProfileNetworkDeferUntil) return true
   return isPubkeyAwaitingProfileBatch(pubkey) || isPubkeyInProfileBatchCooldown(pubkey)
 }
 
diff --git a/src/providers/ThreadProfileBatchProvider.tsx b/src/providers/ThreadProfileBatchProvider.tsx
index 9d119bdc..50a0bf85 100644
--- a/src/providers/ThreadProfileBatchProvider.tsx
+++ b/src/providers/ThreadProfileBatchProvider.tsx
@@ -1,5 +1,9 @@
+import { PROFILE_SECONDARY_PANEL_DEFER_MS } from '@/constants'
 import client from '@/services/client.service'
-import { collectProfilePubkeysFromEvents } from '@/lib/profile-batch-coordinator'
+import {
+  collectProfilePubkeysFromEvents,
+  extendProfileNetworkDeferral
+} from '@/lib/profile-batch-coordinator'
 import { formatPubkey, pubkeyToNpub } from '@/lib/pubkey'
 import {
   NoteFeedProfileContext,
@@ -105,6 +109,7 @@ export function ThreadProfileBatchProvider({
   )
 
   useLayoutEffect(() => {
+    extendProfileNetworkDeferral(PROFILE_SECONDARY_PANEL_DEFER_MS)
     genRef.current += 1
     const gen = genRef.current
     loadedRef.current.clear()
diff --git a/src/services/client-replaceable-events.service.ts b/src/services/client-replaceable-events.service.ts
index 929684ef..aa2a8bd3 100644
--- a/src/services/client-replaceable-events.service.ts
+++ b/src/services/client-replaceable-events.service.ts
@@ -132,6 +132,9 @@ export class ReplaceableEventService {
   private authorReplaceablesRefreshByPubkey = new Map<string, Promise<void>>()
   /** Per-author cooldown after a successful profile-view replaceable sweep (avoids reopen loops). */
   private authorProfileViewRefreshNotBeforeMs = new Map<string, number>()
+  /** Coalesce IDB-hit background refreshes so feed paint does not open one REQ per row per 100ms window. */
+  private backgroundRefreshByKey = new Map<string, { pubkey: string; kind: number; d?: string }>()
+  private backgroundRefreshFlushTimer: ReturnType<typeof setTimeout> | null = null
   private replaceableEventFromBigRelaysDataloader: DataLoader<
     { pubkey: string; kind: number },
     NEvent | null,
@@ -258,7 +261,7 @@ export class ReplaceableEventService {
           this.replaceableEventFromBigRelaysDataloader.prime({ pubkey, kind }, Promise.resolve(pick))
           void indexedDb.putReplaceableEvent(pick).catch(() => {})
           if (!shouldDeferPerPubkeyProfileNetwork(pubkey)) {
-            void this.refreshInBackground(pubkey, kind, d).catch(() => {})
+            this.refreshInBackground(pubkey, kind, d)
           }
           return pick
         }
@@ -273,7 +276,7 @@ export class ReplaceableEventService {
           const indexedDbCached = await indexedDb.getReplaceableEvent(pubkey, kind, d)
           if (indexedDbCached) {
             // Refresh in background
-            this.refreshInBackground(pubkey, kind, d).catch(() => {})
+            this.refreshInBackground(pubkey, kind, d)
             return indexedDbCached
           }
         } catch (error) {
@@ -340,18 +343,49 @@ export class ReplaceableEventService {
   }
   
   /**
-   * Refresh event in background (non-blocking)
+   * Refresh event in background (non-blocking). Batched via {@link flushScheduledBackgroundRefresh}.
    */
-  private async refreshInBackground(pubkey: string, kind: number, d?: string): Promise<void> {
+  private refreshInBackground(pubkey: string, kind: number, d?: string): void {
     if (shouldDeferPerPubkeyProfileNetwork(pubkey)) return
-    try {
-      if (d) {
+    const key = d ? `${pubkey}:${kind}:${d}` : `${pubkey}:${kind}`
+    if (!this.backgroundRefreshByKey.has(key)) {
+      this.backgroundRefreshByKey.set(key, { pubkey, kind, d })
+    }
+    if (this.backgroundRefreshFlushTimer != null) return
+    this.backgroundRefreshFlushTimer = setTimeout(() => {
+      this.backgroundRefreshFlushTimer = null
+      void this.flushScheduledBackgroundRefresh()
+    }, 250)
+  }
+
+  private async flushScheduledBackgroundRefresh(): Promise<void> {
+    const entries = [...this.backgroundRefreshByKey.values()]
+    this.backgroundRefreshByKey.clear()
+    if (entries.length === 0) return
+
+    const withoutD = entries.filter((e) => !e.d)
+    const withD = entries.filter((e) => e.d)
+
+    if (withoutD.length > 0) {
+      const eligible = withoutD.filter((e) => !shouldDeferPerPubkeyProfileNetwork(e.pubkey))
+      if (eligible.length > 0) {
+        try {
+          await this.replaceableEventFromBigRelaysDataloader.loadMany(
+            eligible.map((e) => ({ pubkey: e.pubkey, kind: e.kind }))
+          )
+        } catch {
+          /* ignore */
+        }
+      }
+    }
+
+    for (const { pubkey, kind, d } of withD) {
+      if (shouldDeferPerPubkeyProfileNetwork(pubkey)) continue
+      try {
         await this.replaceableEventDataLoader.load({ pubkey, kind, d })
-      } else {
-        await this.replaceableEventFromBigRelaysDataloader.load({ pubkey, kind })
+      } catch {
+        /* ignore */
       }
-    } catch {
-      // Ignore errors in background refresh
     }
   }
 
@@ -523,7 +557,7 @@ export class ReplaceableEventService {
             if (event && event !== null) {
               results[index] = event
               eventsMap.set(`${pubkey}:${kind}`, event)
-              this.refreshInBackground(pubkey, kind).catch(() => {})
+              this.refreshInBackground(pubkey, kind)
             } else {
               missingParams.push({ pubkey, kind, index })
             }
@@ -1000,7 +1034,7 @@ export class ReplaceableEventService {
         await this.indexProfile(sessionEv)
         void indexedDb.putReplaceableEvent(sessionEv).catch(() => {})
         if (!shouldDeferPerPubkeyProfileNetwork(pubkey)) {
-          void this.refreshInBackground(pubkey, kinds.Metadata).catch(() => {})
+          this.refreshInBackground(pubkey, kinds.Metadata)
         }
         return sessionEv
       }
@@ -1013,7 +1047,7 @@ export class ReplaceableEventService {
           )
           await this.indexProfile(idbEv)
           if (!shouldDeferPerPubkeyProfileNetwork(pubkey)) {
-            void this.refreshInBackground(pubkey, kinds.Metadata).catch(() => {})
+            this.refreshInBackground(pubkey, kinds.Metadata)
           }
           return idbEv
         }