Quote Originally Posted by SoulsCollective View Post
Optimised checkboxes may be found under the Advanced tab - trilinear and anisotropic.
Ah, I see - thanks
Anisotropic/Trilinear Filtering Optimizations: If you want the fastest performance when using Anisotropic or Trilinear texture filtering in a game, you should enable both these options. This may result in a slight drop in image quality, however for most games this should not be noticeable, and in return you should gain some extra FPS.

Source: http://www.tweakguides.com/ATICAT_9.html

There's a new version available, this new build have the [Check for Updates] feature enabled, along with bug fixes