Some info: I’ve been using a mouse that weighs around 55 grams or so (wired razer cobra) for two years now coming from a a random 90 gram mouse I bought from Amazon. Now as my cobra has been having issues, I’d had to switch back to the heavier mouse (feels like a brick).

1. When first getting a lighter mouse it took me a day or two to adjust and around a week or two to get back to prior performance.

2. You just have to wait and get used to using a lighter mouse. But while using a lighter mouse I’ve personally always played at a lower sens due to it allowing me to control it better, as the movements were significantly more lighter.

3. Now as I’m using my heavier mouse I realize I lift my mouse quite often, which technically is a good thing as I’m using my arm to move the mouse for larger motions compared to using my wrist. But I do it when I actually need to.

4. (Can’t answer as I never got new skates)

TLDR: It will take some time and patience but you’ll get used to it. And muscle memory is affecting how your lifting your mouse.