I have been playing KSP for a few months and it needs two things. One is better support for people with multiple monitors. Some games implement was is called "Windowed Fullscreen". This allows one to utilize a second screen while the primary one has the game running fullscreen. This makes browsing the web and other tasks easier and makes the game much more enjoyable in general. Two is a fix to the framerate issue for the main menu. When one selects an item out of the menu list, the camera pans and a new menu is opened. During this panning fps drops to a point where frames are dropped, resulting in very jagged movement.
