The cocos2d-x 3.4 performance reduction! the game aliFarm fps down!

hi
mygame is aliFarm http://ali.gamecomb.com/
it use 3.0 final
and today , i up version to 3.4 final
in the same scene , 3.0 is 26 - 28 , 3.4 is 13 - 14
the performance is half !
can some one tell me why??

第一个机器是 三星 note2

这个是3.0的 最低是40 大部分时间都是 46 帧

这个是3.4的 最高36 帧。。差了10帧

还有另一个三星的低端机器 帧速直接差了一半。
请问 官方有什么说法吗?

顶一下 这样我们游戏。不能更换4.3了。性能下降太多

@ha397666
We are looking into it.
Thanks for your feedback.

It is better if you can use english, then more guys will help you.

oh thank you it is helpful