I had the same problem too, this may help if your videos are short. I converted my video into image frames and played it like an animation. Go to page 3 on my Daenerys soundboard and you'll see it jayuzumi.com/daenerys-soundboard
Thanks for the reply, but unfortunately, I don't think that would work for me. I've already tried shortening them, videos as short as 5 seconds still won't load. Also, the background for one of my levels is a video, and it's 5 minutes long... that would be at least 15,000 frames. :c I would try something easier like a loop, but there's an equalizer in the background video that goes along with the audio from it.
Nice website and channel by the way! I've actually seen some of your videos before, keep up the good work man! I hope to someday be as productive as you on my channel!