The two things I'm currently working on are some optimisations and a keyboard-free change to the struggle system.
I've been looking into ways to optimise the shit out of this thing, and the two main things that seem to be causing the slow issues are the trees/foliage and the actual arena. I've been through and added Nanite to everything I could add it to which should mean better performance overall by reducing detail on objects further away from the player. This will only be effective for players with DirectX12 or above though.
The second one, the arena was always meant to be a temporary thing for testing. When I get some time, I'll rebuild it as a few modular sections and add it in, which will also let it start to use Nanite, but just changing it from instanced geometry should speed things up significantly.
Unfortunately, this is still a really early build of the game though, and speed and optimisation are things that don't usually come at an early stage. But I am working on fixing it.