diff --git a/client/garageserver.io.js b/client/garageserver.io.js
index e9c9e1b..edcacce 100644
--- a/client/garageserver.io.js
+++ b/client/garageserver.io.js
@@ -31,6 +31,7 @@ window.GarageServerIO = (function (window, socketio) {
         this.interpolation = false;
         this.pingInterval = 2000;
         this.clientSidePrediction = false;
+        this.smoothingFactor = 1;
     }
     StateController.prototype = {
         setTime: function (serverTime) {
@@ -191,6 +192,7 @@ window.GarageServerIO = (function (window, socketio) {
                 _stateController.interpolationDelay = data.interpolationDelay;
                 _stateController.pingInterval = data.pingInterval;
                 _stateController.clientSidePrediction = data.clientSidePrediction;
+                _stateController.smoothingFactor = data.smoothingFactor;
                 setInterval(function (){
                     _socket.emit('ping', new Date().getTime());
                 }, _stateController.pingInterval);
@@ -358,7 +360,7 @@ window.GarageServerIO = (function (window, socketio) {
                     if (positions.previous && positions.target) {
                         amount = getInterpolatedAmount(positions.previous.time, positions.target.time);
                         newState = _options.onInterpolation(entity.id, positions.previous.state, positions.target.state, amount);
-                        entity.currentState = newState = _options.onInterpolation(entity.id, entity.currentState, newState, _stateController.physicsDelta * 20);
+                        entity.currentState = newState = _options.onInterpolation(entity.id, entity.currentState, newState, _stateController.smoothingFactor);
                     }
                 }
             });
diff --git a/lib/server/garageserver.io.js b/lib/server/garageserver.io.js
index 8e14eee..be7daa2 100644
--- a/lib/server/garageserver.io.js
+++ b/lib/server/garageserver.io.js
@@ -2,20 +2,18 @@ var GarageServerGame = require('./garageservergame');
 
 /*
 options = {
-    physicsInterval: 15,
     stateInterval: 45,
     logging: true,
     clientSidePrediction: true,
     interpolation: true,
     interpolationDelay: 100,
+    smoothingFactor: 0.3,
     pingInterval: 2000,
     onPlayerConnect: function (socket),
     onPlayerInput: function (socket, input),
     onPlayerDisconnect: function (socket),
     onPing: function (socket, data),
     onPlayerState: function (socket, data),
-    onUpdatePlayerPhysics: function (id, state, inputs, deltaTime),
-    onUpdateEntityPhysics: function (id, state, deltaTime)
 }
 */
 
@@ -34,6 +32,7 @@ GarageServer.prototype.registerSocketEvents = function (options) {
         }
         socket.emit('state', { 
             physicsDelta: (options.physicsInterval ? options.physicsInterval : 15) / 1000,
+            smoothingFactor: options.smoothingFactor ? options.smoothingFactor : 1,
             interpolation: options.interpolation ? options.interpolation : false,
             interpolationDelay: options.interpolationDelay ? options.interpolationDelay : 100,
             pingInterval: options.pingInterval ? options.pingInterval : 2000,