Somedays league feels not as reponsive compared to other days.(Not PING or FPS Related)

So I've noticed for a while now but, I didn't really know what to search for or if it was just me... Somedays it feels like league isn't as responsive. Other days it feels like its faster from the moment I right click or use an ability. I've payed attention to my fps which is capped at 120 and my ping which is at 48. Both are not changing. Haven't made a post about this because I just didn't know if it was only just me. Any info on this would be much helpful!