I develop my game using cocos2d, I met issue that the fps changed a lot after I call
[[Director sharedDirector] pause];
[[Director sharedDirector] resume];
Say I started my app, the fps rate stays at 60 fps, after I click pause button twice which actually make the director paused and resumed, the fps rate may or may not changed to about 30-40. Not always but at some rate (60%?), the fps rate will jump between 60 and 30-40 when click pause and resume.
I don't have any clue about this, does anybody meet this?
Thanks in advance.