LCP optimization is a website evaluation indicator introduced by Google in recent years. If LCP is optimized to less than 2 seconds, there will be more opportunities for websites to be displayed in Google searches. There are many popular cache plugins in WordPress for LCP optimization. You can install cache plugins for LCP optimization. No matter how to optimize the cache, the initial server response time must be shortened in the end. Before LCP optimization, you need to configure the server cache first.