The images are very important in the website, but if it is a bit too heavy, the loss outweighs the gain. WordPress best plugin don’t recommend to remove most of the images, after all, inserting the picture in the posts can make the posts more lively, also can ease the reader’s reading pressure. My suggestion is to reduce the size of images by the way of image compression.
You can compress greatly images and reduce the size the image files, but guarantee the quality of the images. There are many ways to reduce image size, such as installing best wordpress plugin WP Smush, EWWW Image Optimizer or TinyPNG plugin. You can also use Compress JPEG & PNG images for compression, usually only 20 compression once time.
WP Smush can automatically upload images of your site to the Smush.it server, compressed and then downloaded back to your space, the file path and images name will not change. It is intelligent that the compressed image will not be automatically uploaded for compression, and the quality of the picture has not changed, that is, the so-called lossless compression.
The EWWW Image Optimizer is a WordPress plugin that will automatically optimize your images as you upload them to your blog. It can optimize the images that you have already uploaded, convert your images automatically to the file format that will produce the smallest image size (make sure you read the WARNINGS), and optionally apply lossy compression to achieve huge savings for PNG and JPG images.
Compress JPEG & PNG images Make your website faster by optimizing your JPEG and PNG images. This plugin automatically optimizes all your images by integrating with the popular image compression services TinyJPG and TinyPNG.