Gopher360 is a free zero-config app that instantly turns your Xbox 360, Xbox One, or even DualShock controller into a mouse and keyboard. Just download, run, and relax.
even though the speed is lower, my controller isn't perfectly aligned so the mouse will drift across the screen without me moving the stick, needs a sensitivity setting, not just for speed but actual sensitivity.
Same here, I believe a dead-zone setting could be a solution for this. Dead-zone that can be adjusted in very small increments to find the perfect dead-zone for your controller.
even though the speed is lower, my controller isn't perfectly aligned so the mouse will drift across the screen without me moving the stick, needs a sensitivity setting, not just for speed but actual sensitivity.