QualitySettings.streamingMipmapsRenderersPerFrame

マニュアルに切り替える
public static int streamingMipmapsRenderersPerFrame ;

説明

Number of renderers used to process each frame during the calculation of desired mipmap levels for the associated textures.

Lower this value to reduce the CPU cost when using this feature, at the expense of reducing the rate of texture mipmap computation and loading of those desired mipmaps.