It's deffinitely not about hardware because all other games run smoothly and good visuals. It's just optimization issue from developers and if they can't handle UE engine or UE engine don't allow to optimize the game for VR then they shouldn't add DLC in future instead they should choose another engine which allows good VR optimization and long stages.
For *'s sake we live in 2024 and we play PS2 game in VR mode, even with RTX 4080 Super and I7 14700F
Today you have to offer for players a good VR and proper triple screen support but they only " fixing " minor issues and bugs.