diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1478f386bf2..ce0ce292138 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -95,13 +95,6 @@ jobs:
 
           node scripts/ci-changed-scope.mjs --base "$BASE" --head HEAD
 
-      - name: Setup Node environment
-        if: steps.docs_scope.outputs.docs_only != 'true'
-        uses: ./.github/actions/setup-node-env
-        with:
-          install-bun: "false"
-          install-deps: "false"
-
       - name: Detect changed extensions
         id: changed_extensions
         if: steps.docs_scope.outputs.docs_only != 'true' && steps.changed_scope.outputs.run_node == 'true'
diff --git a/.github/workflows/install-smoke.yml b/.github/workflows/install-smoke.yml
index 5c9d0e92198..59c9f8bff9b 100644
--- a/.github/workflows/install-smoke.yml
+++ b/.github/workflows/install-smoke.yml
@@ -58,13 +58,6 @@ jobs:
 
           node scripts/ci-changed-scope.mjs --base "$BASE" --head HEAD
 
-      - name: Setup Node environment
-        if: steps.docs_scope.outputs.docs_only != 'true'
-        uses: ./.github/actions/setup-node-env
-        with:
-          install-bun: "false"
-          install-deps: "false"
-
       - name: Build install-smoke CI manifest
         id: manifest
         env:
diff --git a/extensions/msteams/src/streaming-message.test.ts b/extensions/msteams/src/streaming-message.test.ts
index 3d255888f41..42704a28d34 100644
--- a/extensions/msteams/src/streaming-message.test.ts
+++ b/extensions/msteams/src/streaming-message.test.ts
@@ -1,25 +1,30 @@
 import { afterEach, describe, expect, it, vi } from "vitest";
 import { TeamsHttpStream } from "./streaming-message.js";
 
+async function flushStreamTimer(): Promise<void> {
+  await vi.advanceTimersByTimeAsync(1);
+}
+
 describe("TeamsHttpStream", () => {
   afterEach(() => {
     vi.useRealTimers();
   });
 
   it("sends first chunk as typing activity with streaminfo", async () => {
+    vi.useFakeTimers();
+
     const sent: unknown[] = [];
     const stream = new TeamsHttpStream({
       sendActivity: vi.fn(async (activity) => {
         sent.push(activity);
         return { id: "stream-1" };
       }),
+      throttleMs: 1,
     });
 
     // Enough text to pass MIN_INITIAL_CHARS threshold
     stream.update("Hello, this is a test response that is long enough.");
-
-    // Wait for throttle to flush
-    await new Promise((r) => setTimeout(r, 700));
+    await flushStreamTimer();
 
     expect(sent.length).toBeGreaterThanOrEqual(1);
     const firstActivity = sent[0] as Record<string, unknown>;
@@ -36,16 +41,19 @@ describe("TeamsHttpStream", () => {
   });
 
   it("sends final message activity on finalize", async () => {
+    vi.useFakeTimers();
+
     const sent: unknown[] = [];
     const stream = new TeamsHttpStream({
       sendActivity: vi.fn(async (activity) => {
         sent.push(activity);
         return { id: "stream-1" };
       }),
+      throttleMs: 1,
     });
 
     stream.update("Hello, this is a complete response for finalization testing.");
-    await new Promise((r) => setTimeout(r, 700));
+    await flushStreamTimer();
 
     await stream.finalize();
 
@@ -76,11 +84,13 @@ describe("TeamsHttpStream", () => {
   });
 
   it("does not send below MIN_INITIAL_CHARS", async () => {
+    vi.useFakeTimers();
+
     const sendActivity = vi.fn(async () => ({ id: "x" }));
-    const stream = new TeamsHttpStream({ sendActivity });
+    const stream = new TeamsHttpStream({ sendActivity, throttleMs: 1 });
 
     stream.update("Hi");
-    await new Promise((r) => setTimeout(r, 700));
+    await flushStreamTimer();
 
     expect(sendActivity).not.toHaveBeenCalled();
   });
@@ -114,6 +124,8 @@ describe("TeamsHttpStream", () => {
   });
 
   it("sets feedbackLoopEnabled on final message", async () => {
+    vi.useFakeTimers();
+
     const sent: unknown[] = [];
     const stream = new TeamsHttpStream({
       sendActivity: vi.fn(async (activity) => {
@@ -121,10 +133,11 @@ describe("TeamsHttpStream", () => {
         return { id: "stream-1" };
       }),
       feedbackLoopEnabled: true,
+      throttleMs: 1,
     });
 
     stream.update("A response long enough to pass the minimum character threshold for streaming.");
-    await new Promise((r) => setTimeout(r, 700));
+    await flushStreamTimer();
     await stream.finalize();
 
     const finalActivity = sent.find(
@@ -163,17 +176,20 @@ describe("TeamsHttpStream", () => {
   });
 
   it("informative update establishes streamId for subsequent chunks", async () => {
+    vi.useFakeTimers();
+
     const sent: unknown[] = [];
     const stream = new TeamsHttpStream({
       sendActivity: vi.fn(async (activity) => {
         sent.push(activity);
         return { id: "stream-1" };
       }),
+      throttleMs: 1,
     });
 
     await stream.sendInformativeUpdate("Working...");
     stream.update("Hello, this is a long enough response for streaming to begin.");
-    await new Promise((r) => setTimeout(r, 1600));
+    await flushStreamTimer();
 
     // Second activity (streaming chunk) should have the streamId from the informative update
     expect(sent.length).toBeGreaterThanOrEqual(2);