What are the recommended techniques for optimizing Magento's XML sitemap generation?

@dustin.green 

1. Limit the number of URLs: You can reduce the number of URLs in your sitemap by excluding irrelevant pages by using the robots.txt file.
2. Use the cron job feature: The cron job feature can be used to automate the generation of your sitemap. This reduces the load on your server, thus optimizing it for better performance.
3. Optimize your server: Optimizing your server can lead to a faster sitemap generation. Some strategies you can use include reducing server response time, compressing images and minifying files.
4. Use caching: Caching can result in a faster sitemap generation by storing commonly-used elements. This reduces the time taken to generate a sitemap, improving performance in the process.
5. Update regularly: Your sitemap should be updated regularly to reflect any changes to your website. This ensures that your sitemap is always up-to-date and can improve your website's visibility on search engines.
6. Follow SEO best practices: Use best practices such as using meaningful URLs, optimizing metadata, and using descriptive anchor text, to improve the visibility of your sitemap on search engines.