Inferis/ViewDeck — pull request #208 by dlackty (2012-12-11 15:38:17+00:00)
Title: Make CALayer rasterized for better performance.

This is a simple trick to improve drawing performance. Just set CALayer's

view.layer.shouldRasterize = YES;
ref: http://www.omnigroup.com/blog/entry/ipad_drop_shadow_performance_test/