In principle, mouse acceleration is a helpful feature in Windows 10 — it proportionally increases the movement of your mouse pointer based on the speed with which you move it across the screen.
That way, you reach your target faster and work more efficiently. But unfortunately, it also means you’re far more likely to overshoot your target, which is annoying in daily use and extremely frustrating when playing games, where accuracy is critical.
The good newsis that it’s easy to turn off — you need to disable the ironically named “Enhance pointer precision” setting, which does exactly the opposite of what its name implies.