Because everyone has been saying that the sync is off, (it's not for me) here are some things that might help: → I recommend wearing headphones for better sound → Use a computer, phones crash this project all the time. → Don't watch in fullscreen or the inside of the project; it makes it laggy. → Clicking flag more than once helps to reduce lag. → Watch the animation once before restarting and watching it through a second time. This usually works really well. → If your computer is really slow, turbo (Shift+flag) might work? If MY computer is fast... sorry, I can't help fix that...