AIR performance for vector graphics

Hello,

I prototyped an app in AS3, and now I want to move it iPhone.  When I had came to this forum before a while back (it was called something else; the Flash to iPhone convertor wasn't a part of Adobe AIR), I got scared by the performance issues reported by the users.  Therefore, I recently bought a Mac Mini to do iPhone development with the intention of porting it using Cocos2d-X.  After going through the APIs and examples, I see that Cocos2d-X is not as good as AS3.  My app uses a lot of vector graphics.  My apps uses 100+ vector Sprites with different fill effects.  I could also apply transformations on them.  I've read the performance for the iPhone has improved, but how is the performance for vector graphics?

Thanks.