How to improve puppeteer performance using launch args (using chromium in headless mode)?

Hi I am using puppeteer for crawling webpages(~1 Million records). For managing long crawls I am using puppeteer-cluster node module.

1. What are the flags that are already enabled when launching chromium using puppeteer? list of args
2. What are some args that will enable me to increase performance of puppeteer?

Currently I am using the following args to launch chromium:

args: [
  '--disable-setuid-sandbox',
  '--disable-dev-shm-usage',
  '--disable-accelerated-2d-canvas',
  '--no-first-run',
  '--disable-gpu'
]