So for those that don’t know, there is something called Mouse Acceleration, which is a thing on MacOS, Windows, and what it does, is it senses how fast your mouse is being moved, and multiplies it. Which means you get an exponential curve for how fast your mouse moves, instead of a linear one.
So move your mouse 2 cm to the right in 200 milliseconds, it moves say 200 pixels on the screen. Move it 4cm to the right in 200 milliseconds, and it moves 600 pixels on the screen.
It’s good for office work, allows your to have a low dpi for selecting small objects, and a high dpi for moving large distances. It works well. But for gaming, it’s inconsistent and actively going to hurt your accuracy and precision. Ever noticed that when you get panicked you wildly overshoot people? It’s not just you making that happen. It’s Windows.
By turning it off, you’ll swap over to a linear method of mouse input. So let’s go over the steps to enable it. There are faster ways to do this but I want this to be easy to follow along.
Press your Windows Key, search ‘Settings’ and click on it. It’s icon is a white cog in case you’ve never gone here.
Now it’ll open up a bunch of options in an application and a search bar at the top. Click the search bar and search ‘Mouse’. A few options will pop up and we’ll click ‘Mouse Settings’.
You’ll now be on your mouse. You can now adjust a bunch of things but we’re not worried about any of those. Look over to the right side, at the top where it says Related Settings, and click on ‘Additional Mouse Options’ below it.
A new window will open, called ‘Mouse Properties’. There’ll be five options in there along the top, we want to go to ‘Pointer Options’, and from there find the top thing, specifically Motion.
In the little Motion area, there’s a tickbox labelled ‘Enhance pointer precision.’ Untick that box. When it is ticked, mouse acceleration is applied, when it is unticked, mouse acceleration is off. Windows is a product made for office use first, gaming second.
Congratulations, aiming in Overwatch is going to feel weird for a little bit, but it should be much more consistent now. Have fun and enjoy being more accurate!
Edit: It turns out Overwatch takes Raw Input from your mouse (at least, we think, internet is iffy on that), but nonetheless this’ll be nice for other games that don’t. 
