I am now using the CAWPILE method of rating books. I made a post announcing it in January 2021. G at Book Roast made a video explaining it better than I probably can. I will also give a brief overview here as well.
CAWPILE stands for:
Each category is given a value between 1-10 and then the average is calculated which then corresponds to a certain star rating.
This new rating system will be more accurate and will help with fair ratings.