Try size: 768 x 1024 or 1024 x 1024 (OOO)
Weights: 0.8
Clip skip: 2
Pictures from OOO_v80
Note: It's the same old problem, his weapons are not easy to train, so just make do with it...You can choose either "holding polearm" or "holding spear", otherwise it will become dual wielding.
Reference Video: