Terrible input lag on buttons

[powbam]

But how about deferred rendering? I read that, enabling it affects performance a little bit so I let it stay disabled.

More than a little bit and definitely not in a bad way.

Grim Dawn Version 1.1.4.0

[Deferred Rendering]
With this patch, you can now toggle Deferred Rendering under the Video Options.

Deferred Rendering utilizes additional graphics memory to reduce total draw calls per frame by around 30% or more. This should result in a decent performance increase, especially at high video settings. Complex scenes, such as Devil’s Crossing and parts of Fort Ikon, should see the largest gains.

With Deferred Rendering also come additional video setting levels: Very High for Reflections and Particles. With Particles set to Very High, you can enjoy awesome lighting effects on various spells and abilities that will make combat at night and in undergrounds especially dynamic!

Note: Deferred Renderring does require DirectX 11, so if you are running DirectX 9, you will not be able to toggle this setting. Deferred Rendering also uses FXAA Anti-Aliasing, so that option becomes a toggle rather than a drop-down when the new renderer is enabled.