The following below steps need to follow.
- Choose Reliable Hosting
- Update the Magento Version
- Upgrade Package & Database
- Avoid Built-in Cache
- Keep Indexers Updated
- Use Varnish Cache
- Inspect Third-Party Modules
- Enable Magento Flat Catalogs
- Optimize Product Images
- Minify CSS and JavaScript
- Use Elasticsearch for Instant Results
- Enable GZIP Compression
- Integrate Content Delivery Network
- Clean Database Logs
- Switch to Production Mode
- Enable Advance JS Bundling