Streaming live at 10am (PST)

After Effects lottie save way larger than image sequence size

I have a 105 image sequence I have massively compressed by reducing resolution (1500px x 800), 15fps, and used TinyPNG. Files are 23mb for the original 200 frames, yet only need 105 at 15fps. The only frames in the composition are the ones needed.

Saving to Lottie creates a 160mb file and is very slow to export. It does a first quick pass and then 4s per frame in a second pass. Enable compression is OFF since I have already done it.

What is going on and how might I use the frames as is? I know other posts exists but haven’t seen a solution. Thanks