Originally Posted by porkupan
I'll say even more! There are open-source PDF readers running on eInk devices with much better performance than that of the proprietary Adobe-made PDF viewer, in native code, running on the Sony Readers. Adobe should be ashamed of themselves, they own the PDF format, and they cannot make a PRS viewer for it that doesn't suck. But that's how it is.
That's a pretty weak argument, actually.
There's a wonderful phenomenon of performance being achieved by creating subtle bugs: cut a few corners because you don't *think* people will hit those cases, just so you can avoid a potentially expensive check.
This is not a rare situation and is, actually, one of the ways third-party drivers (particularly those that require high performance, such as video) cause OS crashes.
So I wouldn't go around presuming that any perf issues are a matter of incompetence when there's plenty of industry evidence that perf increases could themselves be signs of incompetence.