The annoying feature being accessibility which turns itself on, and there's no option to turn it off. Sure, there are a bunch of accessibility preferences, but no "disable" option. So every time I opened a document, I got an annoying dialog that the "document is being prepared...".
Solution: find "Accessibility.api" and "ReadOutLoud.api" files in Acrobat's installation directory (under plugins) and rename them to something else. I have created directory named "disabled" and moved the files there. Works like a charm.