i think so, yea. The next change wouldnt affect early game with it, just either cap how much spd difference it can do and probably address how multiple sources of +% dmg work. ie if you have 100 Str, and get +100% dmg from skim and +50% from finisher currently it does them sequentially so 100 +100%->200 +50%->300, instead of 100 +150% -> 250. these can really compound quickly, especially since you could stack up multiple finishers etc.
Not having them multiply with abilities makes them boring probably, it should be limited I think so I do no stack only master sais? I know that the effect of the spyglass does not stack tested that last time.
I played the first version of the game years ago was that even on itch? I remember how I did pyris 999 speed with 2 or 3 manacost in the infinite continue mode, or endless stacking of para money bonus with zero balancing concerns. Mudgill was trash in comparsion because the cast animation was too long.