In games like Overwatch, it's hard to notice the reflections in the first place, and turning them off boosted our fps by 30 to 50 percent.

It's also incredibly performance-intensive. Dynamic reflections is the setting that causes players and other moving objects to be reflected in pools of water and other shiny surfaces. This is one that depends a lot on the game you're playing, and what matters to you in terms of image quality. Definitely one to tweak depending on personal preference and what game you're playing. It can also affect performance significantly depending on how it's implemented.

Like motion blur, it pretends our 'eyes' in the game are cameras, and creates a film-like quality-something that doesn't always look great in the first place. In games, depth of field generally refers to the effect of blurring things in the background.

Especially in fast-paced games like first-person shooters, motion blur is one to avoid. Motion blur has occasionally been used to good effect, such as in racing games, but for the most part, it's a setting that costs you performance in exchange for something most people actually dislike.

Fallout 4 turn off dof