It depends on your Game Review, If you move too fast and most of the problem are in the opening phase you might consider reviewing your opening theory or if the variation is not familiar and it became the main problem, you have to take your time and think critically. As for the middlegames, finding more candidate moves might be beneficial. If it is in the endgame, you might be too tense in making a move. If you are too slow, just do the opposite.
Insight on How to Know If You are Playing Too Fast or Too Slow

Its an interesting equation, though i think it does not really find an accurate measurement of time management. For example in rapid in the past year I have a loss by timeout rate of 0.4% which is really small compared to my 10.3% win by timeout rate. this would sugest that I play too fast, but actually I tend to play really slow and end up in time troubles a lot. from those time troubles i will either blunder away my advantage or be able to convert it under time pressure. In addition i lose by resignation 85.9% and lose by checkmate 13.2% as when i blunder a queen i will resign since i have no play, down a queen, and down on time. or even simply my opponent having m3 so i just resign. So I do not think your equation would show any accurate measurements of time management, unless you get very serious extremes with huge loss by timeout, and little win by timeout.

I had made an experiment, I tried my best to play faster and the answer to the equation did not change. Maybe due to many reasons that player stats cannot tell. @Chess_Player_lol says it best that most of the things that happens in our games cannot be measured by those numbers. Besides, thank you for all the people who participated in this forum and I learned a lot from all of you. I humbly say that I am sorry if all of what I wrote are all wrong. Well then, Good Bye and thanks to all of you.
Interesting formula... i wonder if it works correctly.
I play my openings fast (if it is theory) and i also play recognized positions moderately fast. And known endgame situations fast..
well, where do i play slowly? when i sensed a spesific position will be decisive. or when there are more than 3-4 consequtive captures, i check if there are any other in-between moves or if all of them are forced? or if opponent can sacrifice any of those exchances and create different threat..
Those are the breakpoints of the game. And I usually win when i detect & play those moments correctly and i lose when i fail to do so.