Your computer doesn't need to be able to run shaders at 30fps to have a smooth video - just tell Fraps to lock the framerate at whatever framerate your computer can handle with shaders (for me it's about 5fps) and then in Vegas you can increase the velocity up to 12x (4x by going right-click - properties, and 3x with envelope velocity), so you can easily get 30fps even with a bad computer. That's what I do anyway... Using RSMB will help your smoothness a lot as well.


In terms of the video itself, it's longer than 1 minute which I always enjoy. However, I feel like the tempo of the replays didn't really match that of the song, so it didn't flow very well. There was also very little sync. Datskip made a little drawing to illustrate how you use velocity to sync with song:


So, for sync, try doing that as well as synchronizing the significant moments in the song with significant moments in the replays. See if that helps

Anyway, there's a lot of things to work on but keep going :)