diff --git a/example/src/TestScreen.tsx b/example/src/TestScreen.tsx
index afe520c53..9fc4be99a 100644
--- a/example/src/TestScreen.tsx
+++ b/example/src/TestScreen.tsx
@@ -2,6 +2,7 @@ import { useRoute } from '@react-navigation/native'
 import React, { useEffect, useState } from 'react'
 import { View, Text, Button, ScrollView } from 'react-native'
 
+import { groupPerformanceTests } from './tests/groupPerformanceTests'
 import { groupPermissionsTests } from './tests/groupPermissionsTests'
 import { groupTests } from './tests/groupTests'
 import { restartStreamTests } from './tests/restartStreamsTests'
@@ -108,6 +109,7 @@ export enum TestCategory {
   group = 'group',
   restartStreans = 'restartStreams',
   groupPermissions = 'groupPermissions',
+  groupPerformance = 'groupPerformance',
 }
 
 export default function TestScreen(): JSX.Element {
@@ -121,6 +123,7 @@ export default function TestScreen(): JSX.Element {
     ...groupTests,
     ...restartStreamTests,
     ...groupPermissionsTests,
+    ...groupPerformanceTests,
   ]
   let activeTests, title
   switch (params.testSelection) {
@@ -136,10 +139,6 @@ export default function TestScreen(): JSX.Element {
       activeTests = groupTests
       title = 'Group Unit Tests'
       break
-    case TestCategory.createdAt:
-      activeTests = createdAtTests
-      title = 'Created At Unit Tests'
-      break
     case TestCategory.restartStreans:
       activeTests = restartStreamTests
       title = 'Restart Streams Unit Tests'
@@ -148,6 +147,10 @@ export default function TestScreen(): JSX.Element {
       activeTests = groupPermissionsTests
       title = 'Group Permissions Unit Tests'
       break
+    case TestCategory.groupPerformance:
+      activeTests = groupPerformanceTests
+      title = 'Group Performance Unit Tests'
+      break
   }
 
   return (
diff --git a/example/src/tests/groupPerformanceTests.ts b/example/src/tests/groupPerformanceTests.ts
new file mode 100644
index 000000000..7ee2ac8d4
--- /dev/null
+++ b/example/src/tests/groupPerformanceTests.ts
@@ -0,0 +1,270 @@
+/* eslint-disable @typescript-eslint/no-extra-non-null-assertion */
+import { Client, Group } from 'xmtp-react-native-sdk'
+
+import { Test, assert, createClients } from './test-utils'
+
+export const groupPerformanceTests: Test[] = []
+let counter = 1
+function test(name: string, perform: () => Promise<boolean>) {
+  groupPerformanceTests.push({
+    name: String(counter++) + '. ' + name,
+    run: perform,
+  })
+}
+
+async function createGroups(
+  client: Client,
+  peers: Client[],
+  numGroups: number,
+  numMessages: number
+): Promise<Group[]> {
+  const groups = []
+  const addresses: string[] = peers.map((client) => client.address)
+  for (let i = 0; i < numGroups; i++) {
+    const group = await client.conversations.newGroup(addresses, {
+      name: `group ${i}`,
+      imageUrlSquare: `www.group${i}.com`,
+      description: `group ${i}`,
+    })
+    groups.push(group)
+    for (let i = 0; i < numMessages; i++) {
+      await group.send({ text: `Alix message ${i}` })
+    }
+  }
+  return groups
+}
+
+let alixClient: Client
+let boClient: Client
+let initialPeers: Client[]
+let initialGroups: Group[]
+
+async function beforeAll(
+  groupSize: number = 1,
+  groupMessages: number = 1,
+  peersSize: number = 1
+) {
+  ;[alixClient] = await createClients(1)
+
+  initialPeers = await createClients(peersSize)
+  boClient = initialPeers[0]
+
+  initialGroups = await createGroups(
+    alixClient,
+    initialPeers,
+    groupSize,
+    groupMessages
+  )
+}
+
+test('testing large group listings', async () => {
+  await beforeAll(1000)
+
+  let start = Date.now()
+  let groups = await alixClient.conversations.listGroups()
+  let end = Date.now()
+  console.log(`Alix loaded ${groups.length} groups in ${end - start}ms`)
+  assert(
+    end - start < 3000,
+    'listing 1000 groups should take less than a 3 second'
+  )
+
+  start = Date.now()
+  await alixClient.conversations.syncGroups()
+  end = Date.now()
+  console.log(`Alix synced ${groups.length} groups in ${end - start}ms`)
+  assert(
+    end - start < 100,
+    'syncing 1000 cached groups should take less than a .1 second'
+  )
+
+  start = Date.now()
+  await boClient.conversations.syncGroups()
+  end = Date.now()
+  console.log(`Bo synced ${groups.length} groups in ${end - start}ms`)
+  assert(
+    end - start < 6000,
+    'syncing 1000 groups should take less than a 6 second'
+  )
+
+  start = Date.now()
+  groups = await boClient.conversations.listGroups()
+  end = Date.now()
+  console.log(`Bo loaded ${groups.length} groups in ${end - start}ms`)
+  assert(
+    end - start < 3000,
+    'loading 1000 groups should take less than a 3 second'
+  )
+
+  return true
+})
+
+test('testing large message listings', async () => {
+  await beforeAll(1, 2000)
+
+  const alixGroup = initialGroups[0]
+  let start = Date.now()
+  let messages = await alixGroup.messages()
+  let end = Date.now()
+  console.log(`Alix loaded ${messages.length} messages in ${end - start}ms`)
+  assert(
+    end - start < 1000,
+    'listing 2000 self messages should take less than a 1 second'
+  )
+
+  start = Date.now()
+  await alixGroup.sync()
+  end = Date.now()
+  console.log(`Alix synced ${messages.length} messages in ${end - start}ms`)
+  assert(
+    end - start < 100,
+    'syncing 2000 self messages should take less than a .1 second'
+  )
+
+  await boClient.conversations.syncGroups()
+  const boGroup = await boClient.conversations.findGroup(alixGroup.id)
+  start = Date.now()
+  await boGroup!.sync()
+  end = Date.now()
+  console.log(`Bo synced ${messages.length} messages in ${end - start}ms`)
+  assert(
+    end - start < 3000,
+    'syncing 2000 messages should take less than a 3 second'
+  )
+
+  start = Date.now()
+  messages = await boGroup!.messages()
+  end = Date.now()
+  console.log(`Bo loaded ${messages.length} messages in ${end - start}ms`)
+  assert(
+    end - start < 1000,
+    'loading 2000 messages should take less than a 1 second'
+  )
+
+  return true
+})
+
+test('testing large member listings', async () => {
+  await beforeAll(1, 1, 50)
+
+  const alixGroup = initialGroups[0]
+  let start = Date.now()
+  let members = await alixGroup.members
+  let end = Date.now()
+  console.log(`Alix loaded ${members.length} members in ${end - start}ms`)
+  assert(
+    end - start < 100,
+    'listing 50 members should take less than a .1 second'
+  )
+
+  start = Date.now()
+  await alixGroup.sync()
+  end = Date.now()
+  console.log(`Alix synced ${members.length} members in ${end - start}ms`)
+  assert(
+    end - start < 100,
+    'syncing 50 members should take less than a .1 second'
+  )
+
+  await boClient.conversations.syncGroups()
+  const boGroup = await boClient.conversations.findGroup(alixGroup.id)
+  start = Date.now()
+  await boGroup!.sync()
+  end = Date.now()
+  console.log(`Bo synced ${members.length} members in ${end - start}ms`)
+  assert(
+    end - start < 100,
+    'syncing 50 members should take less than a .1 second'
+  )
+
+  start = Date.now()
+  members = await boGroup!.members
+  end = Date.now()
+  console.log(`Bo loaded ${members.length} members in ${end - start}ms`)
+  assert(
+    end - start < 100,
+    'loading 50 members should take less than a .1 second'
+  )
+
+  const [davonClient] = await createClients(1)
+
+  start = Date.now()
+  await alixGroup.addMembers([davonClient.address])
+  end = Date.now()
+  console.log(`Alix added 1 member in ${end - start}ms`)
+  assert(end - start < 100, 'adding 1 member should take less than a .1 second')
+
+  start = Date.now()
+  members = await alixGroup.members
+  end = Date.now()
+  console.log(`Alix loaded ${members.length} members in ${end - start}ms`)
+  assert(
+    end - start < 100,
+    'loading 50 member should take less than a .1 second'
+  )
+
+  start = Date.now()
+  await boGroup!.sync()
+  end = Date.now()
+  console.log(`Bo synced ${members.length} members in ${end - start}ms`)
+  assert(
+    end - start < 100,
+    'syncing 50 member should take less than a .1 second'
+  )
+
+  start = Date.now()
+  members = await boGroup!.members
+  end = Date.now()
+  console.log(`Bo loaded ${members.length} members in ${end - start}ms`)
+  assert(
+    end - start < 100,
+    'loading 50 member should take less than a .1 second'
+  )
+
+  return true
+})
+
+test('testing sending message in large group', async () => {
+  await beforeAll(1, 2000, 100)
+
+  const alixGroup = initialGroups[0]
+  let start = Date.now()
+  await alixGroup.send({ text: `Alix message` })
+  let end = Date.now()
+  console.log(`Alix sent a message in ${end - start}ms`)
+  assert(
+    end - start < 200,
+    'sending a message should take less than a .2 second'
+  )
+
+  await boClient.conversations.syncGroups()
+  const boGroup = await boClient.conversations.findGroup(alixGroup.id)
+  start = Date.now()
+  await boGroup!.prepareMessage({ text: `Bo message` })
+  end = Date.now()
+  console.log(`Bo sent a message in ${end - start}ms`)
+  assert(
+    end - start < 100,
+    'preparing a message should take less than a .1 second'
+  )
+
+  start = Date.now()
+  await boGroup!.sync()
+  end = Date.now()
+  console.log(`Bo synced messages in ${end - start}ms`)
+  assert(
+    end - start < 9000,
+    'syncing 2000 messages should take less than a 9 second'
+  )
+
+  start = Date.now()
+  await boGroup!.send({ text: `Bo message 2` })
+  end = Date.now()
+  console.log(`Bo sent a message in ${end - start}ms`)
+  assert(
+    end - start < 100,
+    'sending a message should take less than a .1 second'
+  )
+
+  return true
+})
diff --git a/example/src/tests/test-utils.ts b/example/src/tests/test-utils.ts
index 5a293573f..6d1023938 100644
--- a/example/src/tests/test-utils.ts
+++ b/example/src/tests/test-utils.ts
@@ -1,5 +1,5 @@
 import { Platform } from 'expo-modules-core'
-import { Client } from 'xmtp-react-native-sdk'
+import { Client, GroupUpdatedCodec } from 'xmtp-react-native-sdk'
 
 export type Test = {
   name: string
@@ -29,13 +29,13 @@ export async function createClients(numClients: number): Promise<Client[]> {
       166, 83, 208, 224, 254, 44, 205, 227, 175, 49, 234, 129, 74, 252, 135,
       145,
     ])
-    clients.push(
-      await Client.createRandom({
-        env: 'local',
-        enableV3: true,
-        dbEncryptionKey: keyBytes,
-      })
-    )
+    const client = await Client.createRandom({
+      env: 'local',
+      enableV3: true,
+      dbEncryptionKey: keyBytes,
+    })
+    client.register(new GroupUpdatedCodec())
+    clients.push(client)
   }
   return clients
 }
diff --git a/example/src/types/react-native-config.d.ts b/example/src/types/react-native-config.d.ts
index 49de92285..cfd3947a9 100644
--- a/example/src/types/react-native-config.d.ts
+++ b/example/src/types/react-native-config.d.ts
@@ -2,6 +2,7 @@ declare module 'react-native-config' {
   export interface NativeConfig {
     THIRD_WEB_CLIENT_ID?: string
     TEST_PRIVATE_KEY?: string
+    TEST_V3_PRIVATE_KEY?: string
   }
 
   export const Config: NativeConfig