There are numerous methods of dealing with it. Some examples:
- Slightly tint the color using noise
texture. - Change to different tiling using
camera distance - Multiply existing version of the
texture, with the same texture, but
at different tiling, while
desaturating and adjusting
brightness. Link with example.
This should be your primary choice
for mobile. - Add some sort of perlin noise normal
map - Do a highpass on your textures
before importing them to dim large
scale variations - Texture Bombing.