The application is slow while I am using.
this happened on the actual device?
My app runs about 3 to 4x slower than on an iPhone 4 for comparison
These posts are completely useless without code examples or more explanation.
How on earth is anyone on here going to be able to tell you what might be wrong with either your app or the platform?
Staff UI Prototyper (read: full-time hacker)
My BB10 apps: Screamager | Scientific RPN Calculator | The Last Weather App