These polyfills aren't just large, they're also slow because they never use the native implementation. The good news is that you can replace them all with "over

These polyfills aren't just large, they're also slow because they never use the native implementation. The good news is that you can replace them all with "overrides" in package.json. That's what nolyfill (https://github.com/SukkaW/nolyfill https://github.com/SukkaW/nolyfill) does. Oh, and of course the README mentions ljharb.