This sounds pretty amazing. For CPNG-aware libraries, the performance improvements sound impressive. For old (CPNG-unaware) libraries: should I expect any per

This sounds pretty amazing. For CPNG-aware libraries, the performance improvements sound impressive. For old (CPNG-unaware) libraries: should I expect any performance drop reading a CPNG image compared to if the image had remained PNG? Similarly, how much larger will a CPNG be than a PNG?