diff --git a/integration/test/MLS/Util.hs b/integration/test/MLS/Util.hs
index e70fa74d259..2824b292035 100644
--- a/integration/test/MLS/Util.hs
+++ b/integration/test/MLS/Util.hs
@@ -588,7 +588,10 @@ consumingMessages mlsProtocol mp = Codensity $ \k -> do
           Set.difference
             (Set.map (.user) newClients)
             (Set.map (.user) oldClients)
-  withWebSockets (map fst clients) $ \wss -> do
+  let userClients = map ((\ci -> (ci.user, ci.client)) . fst) clients
+
+  -- withEventWebSockets userClients
+  withwebsockets (map fst clients) $ \wss -> do
     r <- k ()
 
     -- if the conversation is actually MLS (and not mixed), pick one client for
diff --git a/integration/test/Performance/BigConversation.hs b/integration/test/Performance/BigConversation.hs
index 8c67daf6242..ade01e9546a 100644
--- a/integration/test/Performance/BigConversation.hs
+++ b/integration/test/Performance/BigConversation.hs
@@ -38,17 +38,19 @@ batchForSize :: ConversationSize -> Word
 batchForSize Tiny = 10
 batchForSize Small = 20
 batchForSize Medium = 100
-batchForSize Big = 100
-batchForSize Large = 250
+batchForSize Big = 250
+batchForSize Large = 500
 batchForSize VeryLarge = 500
 
-testCreateBigMLSConversation :: ConversationSize -> App ()
-testCreateBigMLSConversation convSize = do
-  let teamSize = sizeToNumber convSize
-  let batchSize = fromIntegral . batchForSize $ convSize
+testCreateBigMLSConversation :: App ()
+testCreateBigMLSConversation = withModifiedBackend def \domain -> do
+  let teamSize = 200
+  let batchSize = 50
+  putStrLn $ "Creating a team with " <> show teamSize <> " members"
+  (_, ownerClient, _, members, _) <- createTeamAndClients teamSize
+  putStrLn $ "Creating a conversation with " <> show teamSize <> " members in batches of " <> show batchSize
   totalTime <-
-    fmap snd $ timeIt do
-      (_, ownerClient, _, members, _) <- createTeamAndClients . fromIntegral $ teamSize
+    snd <$> timeIt do
       convId <- createNewGroup def ownerClient
       let memberChunks = chunksOf batchSize members
       for_ memberChunks $ \chunk -> do
@@ -87,7 +89,8 @@ createTeamAndClients teamSize = do
                 { clientArgs =
                     def
                       { prekeys = Just [firstPrekey],
-                        lastPrekey = Just lastPrekey
+                        lastPrekey = Just lastPrekey,
+                        acapabilities = Just ["consumable-notifications"]
                       }
                 }
         createMLSClient def mlsClientOpts user
diff --git a/integration/test/Test/Events.hs b/integration/test/Test/Events.hs
index 29f6fd4f945..bf78d9eb3ef 100644
--- a/integration/test/Test/Events.hs
+++ b/integration/test/Test/Events.hs
@@ -307,7 +307,12 @@ testTransientEvents = do
 ----------------------------------------------------------------------
 -- helpers
 
-withEventsWebSockets :: forall uid a. (HasCallStack, MakesValue uid) => [(uid, String)] -> ([(TChan Value, TChan Value)] -> App a) -> App a
+withEventsWebSockets ::
+  forall uid a.
+  (HasCallStack, MakesValue uid) =>
+  [(uid, String)] ->
+  ([(TChan Value, TChan Value)] -> App a) ->
+  App a
 withEventsWebSockets userClients k = go [] $ reverse userClients
   where
     go :: [(TChan Value, TChan Value)] -> [(uid, String)] -> App a