diff --git a/src/core/renderers/webgl/WebGLRenderer.js b/src/core/renderers/webgl/WebGLRenderer.js
index 6a65077..788ed6c 100644
--- a/src/core/renderers/webgl/WebGLRenderer.js
+++ b/src/core/renderers/webgl/WebGLRenderer.js
@@ -469,9 +469,10 @@
      * Changes the current shader to the one given in parameter
      *
      * @param {PIXI.Shader} shader - the new shader
+     * @param {boolean} [autoProject=true] - Whether automatically set the projection matrix
      * @return {PIXI.WebGLRenderer} Returns itself.
      */
-    bindShader(shader)
+    bindShader(shader, autoProject)
     {
         // TODO cache
         if (this._activeShader !== shader)
@@ -479,8 +480,14 @@
             this._activeShader = shader;
             shader.bind();
 
-            // automatically set the projection matrix
-            shader.uniforms.projectionMatrix = this._activeRenderTarget.projectionMatrix.toArray(true);
+            // `autoProject` normally would be a default parameter set to true
+            // but because of how Babel transpiles default parameters
+            // it hinders the performance of this method.
+            if (autoProject !== false)
+            {
+                // automatically set the projection matrix
+                shader.uniforms.projectionMatrix = this._activeRenderTarget.projectionMatrix.toArray(true);
+            }
         }
 
         return this;