Biome keeps generating too small. (help)

My custom biome keeps generating way to small. I want it generate about the size of a normal biome, but it keeps generating about the same size as a pale garden or smaller. Here are the generation settings: temperature: -0.45 - 0.2 humidity: -1 - 1 continatalness: -0.03 - 1 erosion: -1 - 1 weirdness: 0.5 - 1