Poor resolution on Zenless Zone Zero

🐧linux

I tried running zenless zone zero on the launcher, and while it runs okay performance-wise, it looks extremely pixelated. I've tried with both Proton GE and DW Proton and have the same issue. I also cannot use my full monitor resolution of 2560x1440

OS: CachyOS (6.12.69-3-cachyos-lts)
Environment: Hyprland
CPU: Ryzen 7 5800X
GPU: GTX 1080Ti
Heroic installed via flatpak