diff --git a/benchmarks/watch_history_publish_bench.js b/benchmarks/watch_history_publish_bench.js
new file mode 100644
index 00000000..ab562bb2
--- /dev/null
+++ b/benchmarks/watch_history_publish_bench.js
@@ -0,0 +1,69 @@
+
+import { createWatchHistoryManager } from "../js/nostr/watchHistory.js";
+
+async function main() {
+  console.log("Starting WatchHistoryManager benchmark...");
+
+  // Mock dependencies
+  const mockSigner = {
+    signEvent: async (event) => {
+        // Simulate signing latency
+        await new Promise(resolve => setTimeout(resolve, 10));
+        return { ...event, sig: "mock-sig" };
+    },
+    nip04Encrypt: async (pubkey, plaintext) => {
+        await new Promise(resolve => setTimeout(resolve, 5));
+        return "mock-ciphertext";
+    }
+  };
+
+  const mockPool = {
+    publish: (relays, event) => {
+       return {
+           on: (status, cb) => {
+               if (status === 'ok') {
+                   // Simulate network latency
+                   setTimeout(cb, 50);
+               }
+           }
+       }
+    }
+  };
+
+  const deps = {
+    ensureNostrTools: async () => ({
+        nip04: { encrypt: async () => "encrypted" },
+        utils: { hexToBytes: () => new Uint8Array(32) }
+    }),
+    getCachedNostrTools: () => ({
+        nip04: { encrypt: async () => "encrypted" },
+        utils: { hexToBytes: () => new Uint8Array(32) }
+    }),
+    getActivePubkey: () => "00".repeat(32),
+    getSessionActor: () => null,
+    resolveActiveSigner: () => mockSigner,
+    getPool: () => mockPool,
+    signEventWithPrivateKey: async () => {
+         await new Promise(resolve => setTimeout(resolve, 10));
+         return { sig: "mock-sig" };
+    },
+    shouldRequestExtensionPermissions: () => false,
+  };
+
+  const manager = createWatchHistoryManager(deps);
+
+  // Create records for 12 months
+  const records = {};
+  for (let i = 1; i <= 12; i++) {
+      const month = `2023-${String(i).padStart(2, '0')}`;
+      records[month] = [{ type: 'e', value: `item-${i}`, watchedAt: 1672531200 + i * 100 }];
+  }
+
+  const start = Date.now();
+  await manager.publishRecords(records, { actorPubkey: "00".repeat(32) });
+  const duration = Date.now() - start;
+
+  console.log(`Published 12 months in ${duration}ms`);
+}
+
+main().catch(console.error);
diff --git a/js/nostr/watchHistory.js b/js/nostr/watchHistory.js
index 38926ddb..cbae8899 100644
--- a/js/nostr/watchHistory.js
+++ b/js/nostr/watchHistory.js
@@ -1908,30 +1908,32 @@ class WatchHistoryManager {
         const chunkEvents = Array.isArray(results)
           ? results.flat().filter((event) => event && typeof event === "object")
           : [];
-        const decryptionPromises = chunkEvents.map(async (event) => {
-          const ciphertext = typeof event.content === "string" ? event.content : "";
-          if (!ciphertext) {
-            return [];
-          }
-          let plaintext = "";
-          if (typeof decryptSigner.nip04Decrypt === "function") {
-            try {
-              plaintext = await decryptSigner.nip04Decrypt(actorKey, ciphertext);
-            } catch (error) {
-              devLogger.warn("[nostr] Failed to decrypt watch history chunk:", error);
+        const chunkResults = await pMap(
+          chunkEvents,
+          async (event) => {
+            const ciphertext = typeof event.content === "string" ? event.content : "";
+            if (!ciphertext) {
+              return [];
+            }
+            let plaintext = "";
+            if (typeof decryptSigner.nip04Decrypt === "function") {
+              try {
+                plaintext = await decryptSigner.nip04Decrypt(actorKey, ciphertext);
+              } catch (error) {
+                devLogger.warn("[nostr] Failed to decrypt watch history chunk:", error);
+              }
+            }
+            if (!plaintext) {
+              return [];
+            }
+            const parsed = parseWatchHistoryPayload(plaintext);
+            if (Array.isArray(parsed.items) && parsed.items.length) {
+              return parsed.items;
             }
-          }
-          if (!plaintext) {
             return [];
-          }
-          const parsed = parseWatchHistoryPayload(plaintext);
-          if (Array.isArray(parsed.items) && parsed.items.length) {
-            return parsed.items;
-          }
-          return [];
-        });
-
-        const chunkResults = await Promise.all(decryptionPromises);
+          },
+          { concurrency: 5 },
+        );
         decryptedItems.push(...chunkResults.flat());
       } catch (error) {
         devLogger.warn("[nostr] Failed to fetch watch history chunks:", error);
diff --git a/js/state/profileCache.js b/js/state/profileCache.js
index b046332d..4e0bc561 100644
--- a/js/state/profileCache.js
+++ b/js/state/profileCache.js
@@ -367,8 +367,12 @@ class ProfileCache {
     return userCache ? userCache.get(section) : undefined;
   }
 
+  /**
+   * Clears all cached data for a specific public key from memory.
+   * This operation is O(1) thanks to the nested map structure.
+   * @param {string} pubkey - The hex public key to clear.
+   */
   clearMemoryCache(pubkey) {
-    // Optimized: O(1) deletion due to nested map structure
     this.memoryCache.delete(pubkey);
   }