Changing tbe screen resolution from 800x600 to 1024x768 whilst RR was running didn't help. But changing it back to 800x600 fixed any flash forms already loaded. They are now fully usable and as snappy as I presume you are seeing them. However if I go to a page I hadn't yet viewed, that form is permanently slow until I repeat the above workaround.
Playing with the skin at normal speeds made me desire it even more . If I can work out how to fix RR's problem with it on my car PC, any chance I can get the source files (whatever they are?) and some suggestions on good flash editing software. Then I'll start looking at adding a GPS skin with more user friendly UI than the current Media Car skins which are difficult and slow to use even when parked.