Thank you for playing and highlighting so clearly what could be improved :)
I am not sure if you figured out that you can throw the spinner faster by scrolling faster, or still find the max speed to be too slow (or you would get rid of the slower speeds) . In any case, the main mechanic of throwing by using the scroll wheel should have been explained better.
I really like the idea of different throw speeds, where each has a different strength depending on the situation (e.g. close up and ranged target), but it definitely could use some more polish. I opted for a return speed similar to the throw speed as I thought it was more realistic. An instant return without any explanation or return speed faster than the throw felt off to me. Maybe a kind of lasso mechanic with visual indication where the player can decide when to quickly reel the spinner back in could work.