Have you tried Palabre?
+1. Easily the best reader available. I honestly don't have a single major complaint about it. The UI is customisable and one of the best designed readers out there and it's fast. My only slight niggle is that a recent update seems to have slowed down the content loading a little bit, though I don't know if it's my imagination. I just remember it being really fast to load when I first started using it, and now it takes a tad longer. Doesn't really detract from it though.