There are two ways to minimize main thread work in Elementor. The first way is by using 10Web Booster, which is a free plugin available for download from WordPress.org. It automatically applies various optimizations, including critical CSS, JS delay, font swapping, lazy loading, and more. The free version of the plugin includes all of these optimizations for up to 6 pages of a website, while the pro version unlocks them for all pages. The second way is by using an experimental feature in Elementor called Performance Experiments. This feature allows you to test new performance optimizations that are not yet officially released. However, it is important to be careful when using this feature, as it may cause unexpected issues or conflicts with other plugins or features. If you choose to use Performance Experiments, make sure to thoroughly test your website and monitor its performance before and after applying the changes.