So I found the same thing the guy posted in 2019:https://forums.tomshardware.com/threads/mouse-randomly-starts-feeling-delayed-and-floaty.3538821/
Literally the same thing happens to me that happens to him since a few days. I will add that the floaty sens starts after sitting on the pc for a few...
So for the past month ive had this issue where my mouse would randomly start feeling off and inaccurate, like it isn't stuttery or anything it just feels like i can't fully control it, its weird tho because it will work fine for a while and then all of a sudden it will just start feeling floaty...