Optimizing images is the easiest way to boost speed and search ranking. Start...

https://star-wiki.win/index.php/Should_I_Include_Colors_Like_Red_Apples_in_Filenames%3F_The_Truth_About_Image_SEO

Optimizing images is the easiest way to boost speed and search ranking. Start by naming files descriptively—ditch the generic "IMG_001"—and write alt text that actually describes the content