Increase the max mouse sensitivity. The mouse I used to use on Xbox One worked great but using it on Series X, the cursor is slugish even with the speed setting maxed out in the Settings app, which I found out was related to playing in 4K compared to 1080p. Changing the in-game settings also doesn't do much to resolve the issue.

I tested the same mouse on Windows 11 running the same resolution and found that to replicate the same cursor speed as on Series X, I only have to set the cursor speed to around 50%, with no third party software installed that could impact the result. This speed is also too slow at 4K but I can always increase the speed while I can't do the same on Xbox and the mouse I'm using has no option to set the on-board DPI.