Do we have a list of games that can tell us if fix foveated rendering actually increase FPS?

Do we have a list of games that can tell us if dynamic/fixed foveated rendering actually increase fps?

I tried using it on couple of games and find that most of the games I play actually DECREASE fps, games like project cars 2 and blade & sorcery actually see a huge drop in frame rate compare to not using fixed foveated rendering at all