Here is one example of crappy textures on some of the world objects:
First screenshot is when I login the game and textures are set at "Unlimited", wood texture.
And now when i lower the settings to Low and then back up at unlimited:
But most noticeable difference is in characters.
Again first screenshot is when I login to the game:

pay attention to the npc close to the camera.
And now when i change the settings to Low and then back to Unlimited:

Even characters that are far look much better.
This is not only the issue with npcs, its also with creatures/mobs and real players. Even when u get close textures are blur like its on Low settings.
But once I put them on Low and then back up on Unlimited all the textures in all zones look like it should be and it stays like that until i leave the game.