run hitTest only if necessary

lib/extract/extractProps.js

@@ -29,7 +29,7 @@ export default function(props, options = {stroke: true, transform: true, fill: t
     }
 
     if (options.transform) {
-        extractedProps.transform = extractTransform(props);
+        extractedProps.trans = extractTransform(props);
     }
 
     if (options.responder) {

lib/extract/extractResponder.js

@@ -1,6 +1,19 @@
-import {responderPropsKeys} from '../props';
+import {responderProps} from '../props';
 import _ from 'lodash';
 
 export default function (props) {
-    return _.pick(props, responderPropsKeys);
+    let touchable;
+
+    return _.reduce(props, (prev, value, key) => {
+        if (value && responderProps[key]) {
+            prev[key] = value;
+
+            if (!touchable) {
+                touchable = true;
+                prev.touchable = true;
+            }
+        }
+
+        return prev;
+    }, {});
 }