Slow WP site and crawling errors

I am currently developing a new WordPress client website that is loading slower than anticipated, possibly because of the 18 active plugins. What is the most effective method to pinpoint which plugins are affecting the performance? The website is indexed, but I am encountering errors with tools like Google PageSpeed Insights and Schema.org validation, despite no restrictions on crawlers. Can you provide any advice on how to troubleshoot this issue?

Start by deactivating all plugins except for the core WordPress plugins. This will isolate the impact of your plugins on the website’s speed. Then, reactivate the plugins one by one, testing the website’s performance after each activation. This process will help identify which plugin is causing the slowdown.

If you are experiencing errors with Google PageSpeed Insights and Schema.org validation, it could be due to plugin conflicts, outdated code, or issues with the website’s theme. Check for plugin updates, review the website’s code for errors, and ensure that your theme is up-to-date and compatible with your WordPress version.

Remember that a large number of plugins can significantly impact your website’s performance. Consider simplifying your plugin suite by replacing multiple plugins with a single plugin that provides similar functionality.