tf2config

-dxlevel 90 -novid -nojoy -nosteamcontroller -nohltv -particles 1 -precachefontchars -w 1920 -h 1080 +exec preloader.cfg

• -dxlevel 90 — Sets DirectX level to 9.0
• -novid — Skips the intro video
• -nojoy — Disables joystick support
• -nosteamcontroller — Disables Steam Controller support
• -nohltv — Disables SourceTV
• -particles 1 — Reduces particle detail
• -precachefontchars — Preloads all font characters to reduce stuttering
• -w 1920 -h 1080 — Sets resolution to 1920x1080
• +exec preloader.cfg — Runs the preloader.cfg file on launch (needed for the preloader in tf\custom)