diff --git a/src/app.cpp b/src/app.cpp
index 4230117..6e985a6 100644
--- a/src/app.cpp
+++ b/src/app.cpp
@@ -1168,8 +1168,14 @@ void App::update()
                 } else if (walletDataPage && shouldRefreshRecentTransactions()) {
                     refreshRecentTransactionData();
                 }
-                // 0-conf chat: the normal harvest above only re-scans on a new block, so also do a light
-                // mempool scan of the chat address every cycle to surface messages before confirmation.
+            }
+            // 0-conf chat: a DEDICATED ~2.5s mempool scan of the chat address, independent of the page's
+            // (slower, 10–15s) Transactions cadence — so incoming messages surface in a few seconds. The
+            // normal harvest only re-scans on a new block. Self-gated (no-op without a chat identity /
+            // connection / on lite); the in-flight guard keeps overlapping RPCs from stacking.
+            chat_fast_scan_accum_ += ImGui::GetIO().DeltaTime;
+            if (chat_fast_scan_accum_ >= 2.5f) {
+                chat_fast_scan_accum_ = 0.0f;
                 fastScanChatMemos();
             }
             if (network_refresh_.consumeDue(RefreshTimer::Addresses)) {
diff --git a/src/app.h b/src/app.h
index f597db3..1140383 100644
--- a/src/app.h
+++ b/src/app.h
@@ -735,6 +735,7 @@ private:
     // (they still un-hide via the normal confirmed harvest). Self-gated; no-op without a chat identity.
     void fastScanChatMemos();
     bool chat_fast_scan_in_flight_ = false;   // guard against overlapping fast-scan RPCs
+    float chat_fast_scan_accum_ = 0.0f;       // seconds since the last fast-scan (dedicated ~2.5s poll)
     // Lite first-run welcome prompt: dismissed for the session once the user picks an action.
     bool lite_firstrun_dismissed_ = false;
     // Lite send-time unlock: set to show the unlock modal when a spend is attempted while locked.