Trying to call API with a list of URLs but Lambda is timing out

I'm trying to call the Pagespeed Insights API and save the response back in Dynamo. The Lambda timeout is 15 min. I will eventually need to call the API with about 100 URLs with an average response time of 20-30 sec.

What is the best approach on doing this?

My current code looks like this:

const { v4 } = require('uuid');
const axios = require('axios');
const urls = require('urls.json');
const endpoint = "https://www.googleapis.com/pagespeedonline/v5/runPagespeed";
const API_KEY = "";
const dynamodb = require('aws-sdk/clients/dynamodb');
const docClient = new dynamodb.DocumentClient();
const tableName = process.env.SAMPLE_TABLE;

var id;

const insertRecords = async (_id, _url, _lighthouseResults) => {

const metrics = _lighthouseResults.lighthouseResult.audits.metrics.details.items[0];

console.log(metrics);
    const params = {
        TableName: tableName,
        Item: { id: _id,
                created_at: new Date().toISOString(),
                URL: _url,
                metrics
            },
    };
    console.log("got to db entry")
    console.log(_id)
    console.log(_url)
    console.log(_lighthouseResults)

    return docClient.put(params).promise(); // convert to Promise
}

exports.putItemHandler = async (event) => { // Async function
  for (const url of urls) {
    id = v4();
    console.log(url + " - " + id);

    const lighthouseResults = await getLighthouse(url);     

    await insertRecords(id, url, lighthouseResults) // wait until it finish and go to next item
      .catch((error) => {
        console.log(error);
        // throw error; don't care about this error, just continue
      });
  }
  console.log("Done");
};

const getLighthouse = async (url) => {
    console.log("inside getLighthouse")

    try {
        const resp = await axios.get(endpoint, {
            params: {
                key: API_KEY,
                url: url,
                category: 'performance',
                strategy: 'mobile'
            }
        });

        return resp.data

    }
    catch (err) {
        console.error(err)
    }

}