Let’s be completely honest here:

import * as _ from "lodash";
let i;
const bigArray = [];
for (i = 0; i < 1000000; i++) {
bigArray.push({ number: i });
}
let start = Date.now();
bigArray.map(x => x + 2);
console.log("native   " + (Date.now() - start));
start = Date.now();
_.map(bigArray, x => x + 2);
console.log("lodash   " + (Date.now() - start));

native 207

lodash 234