I've got an application developed in Sencha Touch 1.1, it's running native using Cordova/Phonegap.

It works great on iPad 2 and iPad mini. Usually, it works great on iPad 3 too. However, when it opens a Sencha Chart graph it might crash.

When I'm looking in the XCode console, I see that the appliction on the iPad 3 receives memory warnings quite often. The iPad mini and iPad 2 doesn't. That's unexpected, since the iPad 3 has the twice amount of memory and the application doesn't use more memory on the iPad 3. It uses about 85MB.

Does anyone have a clue what's going on?
Code:
"APP[123] <Warning>: Received memory warning."