It's been a while, and I've been working mostly on content. However, I made some huge optimizations that will make 4-player + late-game performance a lot better.
Demo Update 17:
Added manual aiming override for controllers if the player aims manually while auto-aim is turned on.
Optimized floating damage numbers (Big Optimization!).
Precompiled some shaders for VFX to reduce stuttering.
Improved player network interpolation.
Optimized several weapons like the Vial of Acid, Holy Icon, and Toxic Goo.
Improved enemy performance.
Improved VFX performance.
Fixed Chain Lightning and Mana Burst sometimes not playing their VFX in multiplayer.
Improved EXP and gold drop performance.