Huge file size for animation using Photoshop's timeline function
Hi there! I am working on an animation and am not even 20 seconds in yet. I have 3 rasterized solid color layers and 3 layers with animation in them. The animation is only 10 frames per second and there are no smart object layers. I have an audio file attached to the document that is 4 minutes long but is only 7.1 MB. My Document size is 1920 x 1080 and 72 DPI. All of this should make for a relatively small PSD size, which I am sure of because I have created many animations much longer and more complex than this at less than half the size, but this specific file is saving at around 700 MB. Attached is a screen cap of my work space if anyone will think that helps! Any suggestions?
(I am using Photoshop CC 2017)

