When improving a slow page, check what kind of delay occurs on the actual user's device or network. Depending on the cause, such as a large image, a script with a long execution time, or a slow server response, the solution will also be different.
Laboratory measurements are used to replicate the problem, and real user data is used to determine the distribution of visit experiences. Even if inquiries or purchases have changed after speed improvement, you must also check whether there have been changes in campaigns, products, or demand. A specific performance score does not guarantee ranking or sales.