I’m not sure about it, but there are good chances that you won’t be able to achieve what you want with the current paper2d. AFAIK you need to be able to have all the sprites of the flipbook into a single texture (spritesheet) so that you don’t need to switch textures (that’s usually the reason of the frame drop) during rendering. It’s been a while since I last checked paper2d, so maybe now there’s a way to import a spritesheet and slice it up into subtextures to assign to the animations of the flipbook.