When your website is loading, you can show a simple animation to your visitors with a customizable preloader. To do so, you can follow the below steps:

Step-1:

Go to Appearance>Customize and click on General then click on Preloader Settings to set up the ready-to-use preloader.

Step-2:

Toggle the “Enable Preloader” to enable and disable the preloader.  You can set preloader image from your computer.