diff --git a/Assets/Mirage/Runtime/RemoteCalls/ClientRpcSender.cs b/Assets/Mirage/Runtime/RemoteCalls/ClientRpcSender.cs
index 39e1e57b3f..fef0c08bb5 100644
--- a/Assets/Mirage/Runtime/RemoteCalls/ClientRpcSender.cs
+++ b/Assets/Mirage/Runtime/RemoteCalls/ClientRpcSender.cs
@@ -11,8 +11,9 @@ public static class ClientRpcSender
     {
         private static readonly ILogger logger = LogFactory.GetLogger(typeof(ClientRpcSender));
 
-        public static void Send(NetworkBehaviour behaviour, int index, NetworkWriter writer, Channel channelId, bool excludeOwner)
+        public static void Send(NetworkBehaviour behaviour, int relativeIndex, NetworkWriter writer, Channel channelId, bool excludeOwner)
         {
+            var index = behaviour.Identity.RemoteCallCollection.GetIndexOffset(behaviour) + relativeIndex;
             var message = CreateMessage(behaviour, index, writer);
 
             // The public facing parameter is excludeOwner in [ClientRpc]
@@ -21,8 +22,9 @@ public static void Send(NetworkBehaviour behaviour, int index, NetworkWriter wri
             behaviour.Identity.SendToRemoteObservers(message, includeOwner, channelId);
         }
 
-        public static void SendTarget(NetworkBehaviour behaviour, int index, NetworkWriter writer, Channel channelId, INetworkPlayer player)
+        public static void SendTarget(NetworkBehaviour behaviour, int relativeIndex, NetworkWriter writer, Channel channelId, INetworkPlayer player)
         {
+            var index = behaviour.Identity.RemoteCallCollection.GetIndexOffset(behaviour) + relativeIndex;
             var message = CreateMessage(behaviour, index, writer);
 
             // player parameter is optional. use owner if null
diff --git a/Assets/Mirage/Runtime/RemoteCalls/RemoteCallHelper.cs b/Assets/Mirage/Runtime/RemoteCalls/RemoteCallHelper.cs
index 5ab518466e..d05880f796 100644
--- a/Assets/Mirage/Runtime/RemoteCalls/RemoteCallHelper.cs
+++ b/Assets/Mirage/Runtime/RemoteCalls/RemoteCallHelper.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Runtime.CompilerServices;
 using Cysharp.Threading.Tasks;
 using Mirage.Logging;
 using Mirage.Serialization;
@@ -83,16 +84,19 @@ void CmdWrapper(NetworkBehaviour obj, NetworkReader reader, INetworkPlayer sende
             Register(index, name, cmdRequireAuthority, RpcInvokeType.ServerRpc, behaviour, CmdWrapper);
         }
 
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public int GetIndexOffset(NetworkBehaviour behaviour)
         {
             return IndexOffset[behaviour.ComponentIndex];
         }
 
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public RemoteCall GetRelative(NetworkBehaviour behaviour, int index)
         {
             return RemoteCalls[GetIndexOffset(behaviour) + index];
         }
 
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public RemoteCall GetAbsolute(int index)
         {
             return RemoteCalls[index];
diff --git a/Assets/Mirage/Runtime/RemoteCalls/ServerRpcSender.cs b/Assets/Mirage/Runtime/RemoteCalls/ServerRpcSender.cs
index 86a2c62e8b..1ab028fbd1 100644
--- a/Assets/Mirage/Runtime/RemoteCalls/ServerRpcSender.cs
+++ b/Assets/Mirage/Runtime/RemoteCalls/ServerRpcSender.cs
@@ -9,8 +9,9 @@ namespace Mirage.RemoteCalls
     /// </summary>
     public static class ServerRpcSender
     {
-        public static void Send(NetworkBehaviour behaviour, int index, NetworkWriter writer, Channel channelId, bool requireAuthority)
+        public static void Send(NetworkBehaviour behaviour, int relativeIndex, NetworkWriter writer, Channel channelId, bool requireAuthority)
         {
+            var index = behaviour.Identity.RemoteCallCollection.GetIndexOffset(behaviour) + relativeIndex;
             Validate(behaviour, index, requireAuthority);
 
             var message = new ServerRpcMessage
@@ -23,8 +24,9 @@ public static void Send(NetworkBehaviour behaviour, int index, NetworkWriter wri
             behaviour.Client.Send(message, channelId);
         }
 
-        public static UniTask<T> SendWithReturn<T>(NetworkBehaviour behaviour, int index, NetworkWriter writer, Channel channelId, bool requireAuthority)
+        public static UniTask<T> SendWithReturn<T>(NetworkBehaviour behaviour, int relativeIndex, NetworkWriter writer, Channel channelId, bool requireAuthority)
         {
+            var index = behaviour.Identity.RemoteCallCollection.GetIndexOffset(behaviour) + relativeIndex;
             Validate(behaviour, index, requireAuthority);
             var message = new ServerRpcWithReplyMessage
             {