Why Cocos2D iPhone v1.x Slow in iPhone 5S?

Question

We have an app that is using Cocos2D v1.x and we can't update it to the latest version. When loading on iPhone 5S, which I believe it should load faster but it seems not. Let's say it takes 7 seconds to load a scene in other devices which most likely running on iOS6 and when we load it on iPhone 5S it takes around 11 seconds.

Any idea?

Thanks!

Answer 1

Thanks! I found out that there's a call that was accessing a file but not needed anymore. I removed that call and the issue was fixed.

Answer 2

Cocos2d 1.x use OpenGL 1, and Cocos2d 2.x use OpenGL 2. Moreover, iPhone 5S use OpenGL 3.

Xcode 5 will not support OpenGL 1 correctly and will use some deprecated functions.

So, the game that was already compiled and published will run normally. But if you compile this game using iOS SDK 7.0, you will run with some conflicts.

You have two options: Update cocos2d, or use an old Xcode version with old iOS SDK