From abe42eaf0985de826b416e6952b494294a1b9add Mon Sep 17 00:00:00 2001
From: Algorithm5838 <108630393+Algorithm5838@users.noreply.github.com>
Date: Thu, 26 Mar 2026 00:13:31 +0300
Subject: [PATCH] perf: fix double-RAF streaming display lag (#23016)

---
 src/lib/components/chat/Chat.svelte | 17 +----------------
 1 file changed, 1 insertion(+), 16 deletions(-)

diff --git a/src/lib/components/chat/Chat.svelte b/src/lib/components/chat/Chat.svelte
index 5407f307b..c4955882b 100644
--- a/src/lib/components/chat/Chat.svelte
+++ b/src/lib/components/chat/Chat.svelte
@@ -555,13 +555,7 @@
 					console.log('Unknown message type', data);
 				}
 
-				if (type === 'chat:message:delta' || type === 'message' || type === 'status') {
-					scheduleHistoryFlush();
-				} else {
-					cancelAnimationFrame(historyRAF);
-					historyRAF = null;
-					history.messages[event.message_id] = message;
-				}
+				history.messages[event.message_id] = message;
 			}
 		} else {
 			// Non-active chat completion: queue stays in the global store.
@@ -1313,15 +1307,6 @@
 
 	let scrollRAF = null;
 	let contentsRAF = null;
-	let historyRAF = null;
-	const scheduleHistoryFlush = () => {
-		if (!historyRAF) {
-			historyRAF = requestAnimationFrame(() => {
-				historyRAF = null;
-				history = history;
-			});
-		}
-	};
 	const scheduleScrollToBottom = () => {
 		if (!scrollRAF) {
 			scrollRAF = requestAnimationFrame(async () => {