diff --git a/Microsoft.Azure.Cosmos/src/Serializer/CosmosElementSerializer.cs b/Microsoft.Azure.Cosmos/src/Serializer/CosmosElementSerializer.cs
index 6740e059a8..2cc38725ea 100644
--- a/Microsoft.Azure.Cosmos/src/Serializer/CosmosElementSerializer.cs
+++ b/Microsoft.Azure.Cosmos/src/Serializer/CosmosElementSerializer.cs
@@ -221,7 +221,7 @@ internal static MemoryStream ToStream(
             return new MemoryStream(resultAsArray.Array, resultAsArray.Offset, resultAsArray.Count, writable: false, publiclyVisible: true);
         }
 
-        internal static IEnumerable<T> GetResources<T>(
+        internal static IReadOnlyList<T> GetResources<T>(
             IReadOnlyList<CosmosElement> cosmosArray,
             CosmosSerializerCore serializerCore)
         {
@@ -232,7 +232,7 @@ internal static IEnumerable<T> GetResources<T>(
 
             if (typeof(CosmosElement).IsAssignableFrom(typeof(T)))
             {
-                return cosmosArray.Cast<T>();
+                return cosmosArray.Cast<T>().ToList();
             }
 
             return CosmosElementSerializer.GetResourcesHelper<T>(
@@ -240,7 +240,7 @@ internal static IEnumerable<T> GetResources<T>(
                 serializerCore);
         }
 
-        private static IEnumerable<T> GetResourcesHelper<T>(
+        private static IReadOnlyList<T> GetResourcesHelper<T>(
             IReadOnlyList<CosmosElement> cosmosArray,
             CosmosSerializerCore serializerCore)
         {
diff --git a/Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.EmulatorTests/ChangeFeed/SmokeTests.cs b/Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.EmulatorTests/ChangeFeed/SmokeTests.cs
index 92801fe474..95abdb0dd4 100644
--- a/Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.EmulatorTests/ChangeFeed/SmokeTests.cs
+++ b/Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.EmulatorTests/ChangeFeed/SmokeTests.cs
@@ -230,7 +230,7 @@ private class FailedUserSerializer : CosmosSerializer
             public override T FromStream<T>(Stream stream)
             {
                 // Only let changes serialization pass through
-                if (typeof(T) == typeof(TestClass))
+                if (typeof(T) == typeof(List<TestClass>))
                 {
                     return this.cosmosSerializer.FromStream<T>(stream);
                 }
diff --git a/Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.Performance.Tests/CosmosElements/ReadFeedBenchmark.cs b/Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.Performance.Tests/CosmosElements/ReadFeedBenchmark.cs
index 736889a1f5..2e8dbdedc3 100644
--- a/Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.Performance.Tests/CosmosElements/ReadFeedBenchmark.cs
+++ b/Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.Performance.Tests/CosmosElements/ReadFeedBenchmark.cs
@@ -6,10 +6,7 @@
     using System.Text;
     using BenchmarkDotNet.Attributes;
     using Microsoft.Azure.Cosmos.CosmosElements;
-    using Microsoft.Azure.Cosmos.Json;
-    using Microsoft.Azure.Cosmos.Json.Interop;
     using Microsoft.Azure.Cosmos.Serializer;
-    using Microsoft.Azure.Cosmos.Tests.Poco;
     using Newtonsoft.Json;
 
     [MemoryDiagnoser]
@@ -31,7 +28,7 @@ public class ToDoActivity
 
             public ToDoActivity[] children { get; set; }
 
-            public override bool Equals(Object obj)
+            public override bool Equals(object obj)
             {
                 ToDoActivity input = obj as ToDoActivity;
                 if (input == null)
@@ -110,23 +107,39 @@ public ReadFeedBenchmark()
         }
 
         [Benchmark]
-        public void ByteFindArrayParsingJson()
+        public void ByteParsingToFindJsonArray()
         {
             using (MemoryStream ms = new MemoryStream(this.payloadBytes))
             {
-                using (MemoryStream memoryStream = CosmosFeedResponseSerializer.GetStreamWithoutServiceEnvelope(
-                    ms))
+                long length = ms.Length;
+                using (MemoryStream memoryStream = CosmosFeedResponseSerializer.GetStreamWithoutServiceEnvelope(ms))
                 {
-                    if (ms.Length == memoryStream.Length)
+                    if (length == memoryStream.Length)
                     {
                         throw new Exception();
                     }
-                }  
+                }
+            }
+        }
+
+        [Benchmark]
+        public void ByteParsingToFindJsonArrayWithSeriliazation()
+        {
+            using (MemoryStream ms = new MemoryStream(this.payloadBytes))
+            {
+                IReadOnlyList<ToDoActivity> results = CosmosFeedResponseSerializer.FromFeedResponseStream<ToDoActivity>(
+                    this.serializerCore,
+                    ms);
+
+                if (results.Count != 1000)
+                {
+                    throw new Exception();
+                }
             }
         }
 
         [Benchmark]
-        public void CosmosElements()
+        public void CosmosElementsToFindArray()
         {
             using (MemoryStream ms = new MemoryStream(this.payloadBytes))
             {
@@ -135,7 +148,7 @@ public void CosmosElements()
                     Documents.ResourceType.Document,
                     null);
 
-                using(MemoryStream memoryStream = CosmosElementSerializer.ElementToMemoryStream(
+                using (MemoryStream memoryStream = CosmosElementSerializer.ElementToMemoryStream(
                     array,
                     null))
                 {
@@ -146,5 +159,26 @@ public void CosmosElements()
                 }
             }
         }
+
+        [Benchmark]
+        public void CosmosElementsToFindArrayWithSerialization()
+        {
+            using (MemoryStream ms = new MemoryStream(this.payloadBytes))
+            {
+                CosmosArray array = CosmosElementSerializer.ToCosmosElements(
+                    ms,
+                    Documents.ResourceType.Document,
+                    null);
+
+                IReadOnlyList<ToDoActivity> results = CosmosElementSerializer.GetResources<ToDoActivity>(
+                    array,
+                    this.serializerCore);
+
+                if (results.Count != 1000)
+                {
+                    throw new Exception();
+                }
+            }
+        }
     }
 }
\ No newline at end of file