@wachunei noticed that the specific Security & Privacy section takes a while to load because of the seedphrasevideo. He suggested "to defer that to after the navigation animation has finished so the UI does no feel laggy or add a screenshot as a thumbnail instead of autoplaying, maybe autoplay the first time ever. Or at least avoid doing it over cellular data perhaps."

We can optimize this critical video in the build to 1. avoid external calls and 2. reduce the loading time in that critical screen.

Extension is already bundling the video with the build.

I don't know how it affects l10n. A developer should scope it before working on it.

l10n tracks are loaded separately and played in a overlay, here’s the video source
https://github.com/MetaMask/metamask-mobile/blob/main/app/videos/recovery-phrase.mp4?raw=true

subs
https://github.com/MetaMask/metamask-mobile/tree/main/app/videos/subtitles/secretPhrase