On Thursday, NVIDIA released their latest graphics drivers to align with Gears of War 4, Mafia 3, and Shadow Warrior 2. The drivers were published before each of these games launched, which allows gamers to optimize their PCs ahead of time. Graphics vendors work with many big-budget studios during their development cycles, and any tweaks that they found over the months and years will be targeted to this release, as usual.
Beyond tweaking for these games, NVIDIA has also announced a couple of fixes. If you were experiencing issues in Overwatch, then these new drivers fix how decals are drawn. The major fix claims to reduce inconsistent performance in multiple VR titles, which is very useful for these applications.
You can get these drivers from their website, or just install them from GeForce Experience.