I've had this problem for every game I've done on the iOS.
I've checked to make sure that I'm deleting all the objects I create when not needed, and there's always been around 10-30 objects on the screen. At the start it's fine, but after around 2-3mins it starts lagging.
This is very problematic since I'm doing an endless running game.. would appreciate any help I can get! Is there any sort of memory leak or something that I could be missing besides deleting objects?
EDIT: This is the same on both Mobile web and CocoonJS when hardware accelerated..
I'm pretty sure it was battery problem
I've made a game for iPod touch 4, i've noticed it starts lagging after some mins.
Otherwise, i connect iPod 4 for battery and play, it never lags after of 10 mins
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Weird, my game solved it's own problem. o_O
May have been something to do with sound or maybe deleting objects.
But thanks anyway Joanne! I tried it, there is a slight different on my iPhone 5 as well.