How to improve rendering speed

[Sidharth Suratkal]

My lottie has 300 frames which plays at 30fps. The render resolution is 1920x1080. It took around 150 sec to render into png sequence. But if i added a background image to the json file, the render time shot up to 500 sec.
I was wondering what is botelnecking the system and is there any way to optimize puppeteer-lottie rendering speed even if i have to sacrifice on render quality or is multi-processing an option

[galipmedia]

I find ffmpeg very fast to overlay the png sequence over a video (or background image). Not sure if that is an option but works well for me.

[Travis Fischer]

Can you give some more information about the environment you're running in? OS, RAM, Node.js version, etc?

What is the exact command or invocation you're using?

[Sidharth Suratkal]

I am running on cloud server, with 2 CPU and 4Gb ram on Ubuntu 18 and Node version 10.x.
So i figured rendering frames into jpeg sequence works better for my use case also reduces the render time quite a lot but adding more compute resource doesn't yield better result.

Here is my code snippet -

renderLottie({
    path: "data.json",
    output: `tmp/%03d.jpg`,
    height: 1080,
    jpegQuality: 70,
    puppeteerOptions: { args: ["--no-sandbox", "--disable-setuid-sandbox"] }
  })

[qiuliliang]

the same problem, render mp4 very slow, how to fix it?