I currently have the original iPad, and use Goodreader all the time to read books in pdf format. While I love the app, I wish it ran a little faster. Specifically, pre-caching is really slow for some pdf files and markup responses (highlighting, underlining) are generally slow as well. How does Goodreader perform on iPad 2? Is it noticeably faster? I'd appreciate comments from users who have used Goodreader on both iPads.