: Switch to Performance - Lower Graphical Fidelity . This is widely considered the single most effective change, potentially doubling FPS on budget GPUs.
: Set to Fullscreen (not Borderless Windowed). Fullscreen mode reduces input delay and prevents background Windows processes from interfering with the game.
: Open Task Manager and disable non-essential startup items like Spotify or Discord to free up 1–4GB of RAM. GPU & Network Tweaks