diff --git a/.github/workflows/browser-js-production.yml b/.github/workflows/browser-js-production.yml
index c88c4531a..a8d7f4a86 100644
--- a/.github/workflows/browser-js-production.yml
+++ b/.github/workflows/browser-js-production.yml
@@ -30,6 +30,7 @@ jobs:
             callfabric,
             renegotiation,
             videoElement,
+            performance,
             v2WebRTC,
           ]
     steps:
diff --git a/.github/workflows/browser-js-staging.yml b/.github/workflows/browser-js-staging.yml
index 4f23353d9..5ced864cc 100644
--- a/.github/workflows/browser-js-staging.yml
+++ b/.github/workflows/browser-js-staging.yml
@@ -29,6 +29,7 @@ jobs:
             callfabric,
             renegotiation,
             videoElement,
+            performance,
             v2WebRTC,
           ]
     steps:
diff --git a/internal/e2e-js/playwright.config.ts b/internal/e2e-js/playwright.config.ts
index 6681df342..1ecb7d7ea 100644
--- a/internal/e2e-js/playwright.config.ts
+++ b/internal/e2e-js/playwright.config.ts
@@ -61,7 +61,11 @@ const videoElementTests = [
   'buildVideoWithVideoSDK.spec.ts',
   'buildVideoWithFabricSDK.spec.ts',
 ]
-const v2WebRTC = ['v2WebrtcFromRest.spec.ts', 'webrtcCalling.spec.ts']
+const performanceTests = [
+  'callStartTime.spec.ts',
+  'roomSessionStartTime.spec.ts',
+]
+const v2WebRTCTests = ['v2WebrtcFromRest.spec.ts', 'webrtcCalling.spec.ts']
 
 const useDesktopChrome: PlaywrightTestConfig['use'] = {
   ...devices['Desktop Chrome'],
@@ -104,7 +108,8 @@ const config: PlaywrightTestConfig = {
         ...callfabricTests,
         ...renegotiationTests,
         ...videoElementTests,
-        ...v2WebRTC,
+        ...performanceTests,
+        ...v2WebRTCTests,
       ],
     },
     {
@@ -152,10 +157,15 @@ const config: PlaywrightTestConfig = {
       use: useDesktopChrome,
       testMatch: videoElementTests,
     },
+    {
+      name: 'performance',
+      use: useDesktopChrome,
+      testMatch: performanceTests,
+    },
     {
       name: 'v2WebRTC',
       use: useDesktopChrome,
-      testMatch: v2WebRTC,
+      testMatch: v2WebRTCTests,
     },
   ],
 }
diff --git a/internal/e2e-js/tests/callfabric/callStartTime.spec.ts b/internal/e2e-js/tests/callfabric/callStartTime.spec.ts
new file mode 100644
index 000000000..7bf9faea2
--- /dev/null
+++ b/internal/e2e-js/tests/callfabric/callStartTime.spec.ts
@@ -0,0 +1,95 @@
+import { uuid } from '@signalwire/core'
+import { test, expect } from '../../fixtures'
+import { SERVER_URL, createCFClient } from '../../utils'
+import { SignalWireContract } from '@signalwire/js'
+
+export const MAX_CALL_SETUP_TIME_MS = 5000
+
+export const logCallStartTime = (ms: number) => {
+  if (ms < MAX_CALL_SETUP_TIME_MS) {
+    console.log(`\x1b[1;32m✅ call.start(): ${ms.toFixed(0)} ms\x1b[0m`)
+  } else {
+    console.log(`\x1b[1;31m❌ call.start(): ${ms.toFixed(0)} ms\x1b[0m`)
+  }
+}
+
+test.describe('CallFabric Start Time', () => {
+  test('should join a video room within 5 seconds', async ({
+    createCustomPage,
+    resource,
+  }) => {
+    const page = await createCustomPage({ name: '[page]' })
+    await page.goto(SERVER_URL)
+
+    const roomName = `e2e_${uuid()}`
+    await resource.createVideoRoomResource(roomName)
+
+    await createCFClient(page)
+
+    // Dial an address and join a video room
+    const ms = await page.evaluate(
+      async ({ address }) => {
+        // @ts-expect-error
+        const client: SignalWireContract = window._client
+
+        const call = await client.dial({
+          to: address,
+          rootElement: document.getElementById('rootElement'),
+        })
+        // @ts-expect-error
+        window._roomObj = call
+
+        const t0 = performance.now()
+        await call.start()
+
+        return performance.now() - t0
+      },
+      {
+        address: `/public/${roomName}?channel=video`,
+      }
+    )
+
+    logCallStartTime(ms)
+
+    expect(ms).toBeLessThan(MAX_CALL_SETUP_TIME_MS)
+  })
+
+  test('should join an audio-only room within 5 seconds', async ({
+    createCustomPage,
+    resource,
+  }) => {
+    const page = await createCustomPage({ name: '[page]' })
+    await page.goto(SERVER_URL)
+
+    const roomName = `e2e_${uuid()}`
+    await resource.createVideoRoomResource(roomName)
+
+    await createCFClient(page)
+
+    // Dial an address and join a video room
+    const ms = await page.evaluate(
+      async ({ address }) => {
+        // @ts-expect-error
+        const client: SignalWireContract = window._client
+
+        const call = await client.dial({
+          to: address,
+        })
+        // @ts-expect-error
+        window._roomObj = call
+
+        const t0 = performance.now()
+        await call.start()
+
+        return performance.now() - t0
+      },
+      {
+        address: `/public/${roomName}?channel=audio`,
+      }
+    )
+
+    logCallStartTime(ms)
+
+    expect(ms).toBeLessThan(MAX_CALL_SETUP_TIME_MS)
+  })
+})
diff --git a/internal/e2e-js/tests/roomSessionStartTime.spec.ts b/internal/e2e-js/tests/roomSessionStartTime.spec.ts
new file mode 100644
index 000000000..f64f32a69
--- /dev/null
+++ b/internal/e2e-js/tests/roomSessionStartTime.spec.ts
@@ -0,0 +1,55 @@
+import type { Video } from '@signalwire/js'
+import { test, expect } from '../fixtures'
+import { SERVER_URL, createTestRoomSession, randomizeRoomName } from '../utils'
+
+export const MAX_CALL_SETUP_TIME_MS = 5000
+
+export const logCallStartTime = (ms: number) => {
+  if (ms < MAX_CALL_SETUP_TIME_MS) {
+    console.log(`\x1b[1;32m✅ call.start(): ${ms.toFixed(0)} ms\x1b[0m`)
+  } else {
+    console.log(`\x1b[1;31m❌ call.start(): ${ms.toFixed(0)} ms\x1b[0m`)
+  }
+}
+
+test.describe('RoomSession Start Time', () => {
+  test('should join a room room within 5 seconds', async ({
+    createCustomPage,
+  }) => {
+    const page = await createCustomPage({ name: 'raise-lower' })
+    await page.goto(SERVER_URL)
+
+    const roomName = randomizeRoomName('raise-lower-e2e')
+    const memberSettings = {
+      vrt: {
+        room_name: roomName,
+        user_name: 'e2e_participant_meta',
+        auto_create_room: true,
+        permissions: ['room.prioritize_handraise'],
+      },
+      initialEvents: ['room.updated'],
+    }
+
+    await createTestRoomSession(page, memberSettings)
+
+    // --------------- Joining the room ---------------
+    const ms = await page.evaluate(() => {
+      return new Promise<number>(async (resolve, reject) => {
+        // @ts-expect-error
+        const roomObj: Video.RoomSession = window._roomObj
+
+        roomObj.once('room.joined', () => {
+          console.log('Room joined!')
+          resolve(performance.now() - t0)
+        })
+
+        const t0 = performance.now()
+        await roomObj.join().catch(reject)
+      })
+    })
+
+    logCallStartTime(ms)
+
+    expect(ms).toBeLessThan(MAX_CALL_SETUP_TIME_MS)
+  })
+})
diff --git a/internal/e2e-js/utils.ts b/internal/e2e-js/utils.ts
index 9f4e4129c..79f54599b 100644
--- a/internal/e2e-js/utils.ts
+++ b/internal/e2e-js/utils.ts
@@ -1,3 +1,12 @@
+import express, { Express, Request, Response } from 'express'
+import { spawn, ChildProcessWithoutNullStreams } from 'child_process'
+import path from 'path'
+import { EventEmitter } from 'events'
+import { v4 as uuid } from 'uuid'
+import { clearInterval } from 'timers'
+import { Server } from 'http'
+import { createServer } from 'vite'
+import { Page } from '@playwright/test'
 import type {
   DialParams,
   FabricRoomSession,
@@ -7,16 +16,8 @@ import type {
   Video,
 } from '@signalwire/js'
 import type { MediaEventNames } from '@signalwire/webrtc'
-import { createServer } from 'vite'
-import path from 'path'
 import { expect } from './fixtures'
-import { Page } from '@playwright/test'
-import { v4 as uuid } from 'uuid'
-import { clearInterval } from 'timers'
-import express, { Express, Request, Response } from 'express'
-import { Server } from 'http'
-import { spawn, ChildProcessWithoutNullStreams } from 'child_process'
-import { EventEmitter } from 'events'
+
 declare global {
   interface Window {
     _SWJS: {