Thank you for your kind words and your feedback. Regarding the cashing and changing of resolution, this is not an issue I have heard about before. Are you running it on windows or on Mac?
For the mount, that is correct there is no mounted attack currently. Each new animation comes with alot of overhead since all gear pieces and body parts need new spritesheets for those animations in order to sync up, and since there are hundreds of parts it quickly turns into alot of spritesheets and that affects performance. So I'm very picky when it comes to adding new animations currently. But you are not the only one who has requested mounted attack. Dash/roll is also high on the list.