My recent focus has been on improving the speed and responsiveness of FeedsAnywhere. To that end I modified the interface to use more Ajax style loads rather than always refreshing the entire screen. Other elements (like unread counts in the menu) will appear after the page has been loaded vs. having to wait for them to complete first like you did before.
Another aspect is the addition of prefetching for certain page transitions. If you are only viewing unread items marking a page read will use a prefetched set of items for the next page. The same holds true when all items are individually marked read and Next is clicked. When read and unread items are being shown then the Next like will use the preloaded value if there have been time to get it.
Hopefully these changes will result in a speedier and more enjoyable feed reading experience.