SnJake Sapsan-VFI is a custom ComfyUI node for x2 video frame interpolation. It inserts one in-between frame for every input pair, doubling the FPS.
https://github.com/SnJake/SnJake_Sapsan-VFI
git clone https://github.com/SnJake/SnJake_Sapsan-VFI
comfy node install snjake_sapsan-vfi