So you want to upload a YouTube video, but you can’t figure out why does it take so long to upload to youtube? There are a few things to check. First of all, what is the buffer speed that you are using to upload the video? Is it set too low? If it is, increase the buffering speed to help the process along a bit. How big is your video? If it’s a long video, it will take much longer to upload so have a little patience.