One of the method to improve the performance of SCA webpage while developing is to use images in the format WebP, If we have JPEG and PNG images, We can convert the images without changing its dimensions and can be converted into Webp format. This will decrease the loading time of the page and increase the Performance of the Page.
Link to convert JPEG/PNG image into WebP : https://www.freeconvert.com/png-to-webp/