Disabling or lowering these CPU-intensive settings will help improve performance on slow CPUs.

• Disable 3_d_models.
• Disable simulated radiosity (fake_radio). Set the cvar rend-fakeradio to zero.
• Disable particle_effects or lower the value of the rend-particle-rate cvar.
• Disable dynamic_lights. Set the rend-light cvar to zero.

Disabling or lowering these GPU-intensive settings will help improve performance with old graphics accelerators.

• Using paletted textures will save texture memory and make texture reloads less frequent. Enable with the *-paltex* option.
• Disable smart filtering of textures. Smart filtering significantly increases the size of all textures. Disabling it will help conserve texture memory.
• Disable simulated radiosity (FakeRadio). Set the cvar _rend-fakeradio_ to zero.
• Disable dynamic lights or reduce the size of dynamic lights.
• Use additive blending for dynamic lights instead of multiplicative blending.
• Disable particle effects or lower the value of the _rend-particle-rate_ cvar.
• Disable detail textures.
• Don't use high-resolution textures.
• Disable anti-aliasing in the graphics adapter's driver settings.
• Use a lower display resolution.
• Use a 16-bit video mode.