How to reduce CefSharp resource consumption?

Question

Chromium

Good afternoon, please tell me why CefSharp eats so many resources?
I am writing a program that will monitor 15 pages of the site , it is important that they are always open . And this is very heavy on the computer, although the pages are not so heavy.
I turned off the loading of images, which reduced resource consumption by 15%, it doesn’t matter to me how the site will look visually. Maybe there are some other ways? For example, disable css, modules, I heard about plugins - but I didn’t really find any information.