A bit late to the question, but I had good experiences with the former Acronis True Image, now (vaguely) renamed Acronis Cyber Protect.
They have an example of their compression rates: https://kb.acronis.com/content/16791
However, the latest PC Magazine review of the software was kind of lukewarm, so maybe they're not as reliable as before.
You can also use Windows' built in File History application to manage disk image backups: https://www.windowscentral.com/how-create-full-backup-your-windows-11-pc