Try out a smaller skin first, say for example my mAv1c skin, just to see if it works faster. It's got no flash, and it's only 2.5MB total, so the CPU doesn't have to load a whole bunch of images. It was designed for the average joe shmoe carpc user. If it is still slow with a skin like that, then something is configured wrong.
RR Config shouldn't take 10 sec. to start, it's a fairly simple program, and that's why there's no splash screen. Spend a few minutes in the RR FAQ, the answer may already be waiting for you.
Not sure you've seen this: