There's the problem right there. We're not scientists, no one is _actually_ interested in how quickly the scene is rendered in Cinebench 15. We are interested in scores that are comparable to each other in a competitive ranking.
Your efforts are like someone analysing all 3-point shots in the NBA since its introduction in 1979 and concluding that an outside shot is actually 55% harder than an inside shot instead of 50% harder and should therefore be awarded 3.1 instead of 3 points. Just imagine players in 2020 could get 0.1 more points as long as they wear a tiny bracelet around their wrist when they shoot. Some would forget. Some would refuse. But anyone making as many shots as Kobe during his famous 81-point game would end up beating his record. I don't think the fans or players would want that!
Change the rules of the game or make a new game but don't change how an existing game is scored, it messes too much with the integrity of the rankings.