In order to improve framerates near Old Ebonheart, we should remove creature spawn points that will be active when the player is in the city. From CMAugust on Discord:

It might be better to remove creatures from the active grid near the city. The crabs alone use 5 separate textures, which along with shadow maps means that the 4 in view cost nearly 100 draw calls.

The rat is worse, its tiny body is made up of 14 separate textures.