objective c - Conversion of programmatic UIView subclass to Nib-based UIView shows severe performance degradation -


i'm building app, shows lot (100-500) of small views in scrollpanel. these views have several images, text labels, etc. wanted have more declarative , intuitive designer of views , switched ui builder (xib/nib). experience 4x-10x slower performance on opening scene. recognized, if e.g. disable auto layout option uiview, loading accelerated @ least twice. still far slower, did before programmatically. can guess, using auto layout constraints making calculated on each instantiation. have tip, how identify bottleneck(s)?


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