You think a many-layered PSD file is comparable to zooming a single image?
That's like wondering why the source + instrumented dev environment uses so much more resources than its compiled, optimized binary.
What a weird confusion to see on HN.
That's like wondering why the source + instrumented dev environment uses so much more resources than its compiled, optimized binary.
What a weird confusion to see on HN.
Or are you so naive you think that anything of significance is happening on or blocking the UI thread such that merely showing "smoothness" in any way reflects anything about the device's performance at actually doing the photoshop work?