How to handle performance issues, such as slow script execution or high memory usage in Puppeteer?

A few steps you can use to handle performance issues in Puppeteer are as follows:

• Use the page.setCacheEnabled(false) method to disable the cache as it can help reduce memory usage but may also make your script run slower.
• Use the page.setRequestInterception(true) method to intercept and modify network requests as it can help you reduce the number of resources loaded on the page, improving performance.
• Use the page.setJavaScriptEnabled(false) method to disable JavaScript execution on the page as it helps reduce CPU and memory usage, but it may also break some of the functionality on the page.
• Use the page.setViewport() method to set a smaller viewport size. This can help reduce memory usage and improve performance, but it may also make it difficult to see some of the content on the page.
• Use the page.tracing.start() and page.tracing.stop() methods to record a trace of the page's performance. You can then use the trace to identify performance bottlenecks and optimize your script accordingly.

Consider using a headless browser other than Puppeteer, such as Chrome's headless mode or Firefox's headless mode, as they may be more reliable in some instances.