So we need to add some important disadvantages to Khuzait to stop them to fix this solution completely.
@mexxico Here is a quick brainstorm:
1. Creating an additional spear unit type in simulations with bonus against cavalry.
2.
Just like sturgians, additional campaign speed bonus can be only limited to plains and ineffective at forest, desert, snow, river etc. Or it can be completely limited to khuzait territories
3. Giving additional speed penalty at snow, forest, desert, mountain if party's cavalry raito exceeds %25 because more living things to look after at challenging terrains.
4. Making khuzait garrison weaker.
5. Additional simulation penalty for khuzait at sieges. Moral and movement speed penalty at siege mission.
6. Loyalty and security penalties at towns because they were nomads. (kind of).
Some of them can break game balance but suggestion is suggestion.