Cool concept, but it would be more fun without the actual values and try to get close to the value.
It was frustrating because it felt like I was fighting the controls (or sensitivity of my mouse) more than actually playing the game. Toggling the dpi on my mouse made the game was super easy. I then realised you can also use your arrow keys, which solved the issue of players having to adjust their mouse settings, but it also made it super easy with the current gameplay loop.
I recommend making it more obvious that you can use the arrow keys and making the game more fun by hiding the values. The current mode can be a tutorial, maybe you can hide/reveal some of the values to have different difficulties.
The basic concept is fun, the UI looks good, the audio was good (I recognised a lot of the tracks because I also have them saved), and except some minor freezing when loading the level it ran smoothly.
You did a really good job, I hope you're inspired by my feedback to take it to the next level!