Performance issue on iPad

Hi, I'm facing a performance problem on iPad

On iPhone 4S, constant 60 fps and really smooth

On iPad 4, constant 60 fps but micro freezes and lag all the time

I'm using the same zip with cocoonjs launcher

There is approx 270 sprite on the layout but only 5 or 6 on screen at the same time

The game is upscaled to fit the screen on iPad and down scaled on iPhone. Can this be related ?

Thanks !

Have you read Performance Tips?

The game is upscaled to fit the screen on iPad and down scaled on iPhone. Can this be related ?

Let's find out. See if the same lag happens in crop mode.

Landscape and Portrait or just one of the two?

I had a major lag issue a while back but it only applied to one orientation.

mcdan - the landscape performance problem on ipad was fixed a while ago.

I tried in crop mode, no freezes it's smooth like on iPhone. Seems that it dont like the scaling

Ashley thanks, i'm going to read it

Arima good to know!