ios9 - ios app 点击图标进入app，需要等待5秒钟以上，应该怎么优化？

Question

1.ios app 在iphone设备上表现还行，但是在itouch 上，也许是CPU，内存的配置比较低，点击app 图标需要好几秒才能进入主页面，但是现在QQ，微信，无论是iPhone 还是 itouch 点击图标进入app 时都特别流畅，双击home 键 切换app 也是很卡的

2.我尝试把appdelegate 的启动代码关闭之后，依然如此，关机重启，也没有任何效果

3.敬请各位大拿，不吝赐教

Answer 1

It’s best to post the code in AppDelegate, otherwise no one will know what the problem is

Answer 2

Hello, I also encountered the same problem. Even turning off the code doesn't work. It's amazing. If the problem is solved, what is the solution?