Sluggish transitions in Xcode simulator (iPad Retina)

How reliable is the Xcode simulator when testing transition performance for the new iPad?

I’m using build 769 and I have several transitions in my app that are very sluggish when using the iPad Retina mode.
iPhone, iPhone Retina and iPad mode are perfectly OK in the simulator. It’s only iPad Retina mode that has performance problems with my transitions.

Can I trust the simulator?
iMac 27"
Lion 10.7.3
Xcode 4.3.1 [import]uid: 70847 topic_id: 23630 reply_id: 323630[/import]

i think carlos posted somewhere that this is a simulator issue and doesnt happen on the device itself… [import]uid: 90610 topic_id: 23630 reply_id: 94826[/import]