Optimize CRT Shader Performance on Lower-End Systems

Understanding Performance Impact

CRT Monitor Shaders adds visual effects that require extra processing, particularly the scanline rendering and screen distortion. If you experience frame rate drops, several settings can be adjusted to improve performance without completely removing the retro aesthetic.

Reducing Visual Complexity

Disable or lower the screen flicker effect first—it's often the most performance-intensive feature. Next, reduce scanline intensity rather than removing it entirely; subtle scanlines use fewer resources than prominent ones. Check if your shader options include resolution or quality settings; lowering these can significantly improve frame rates.

Balancing Quality and Performance

Disable the soft glow effect on light sources if needed, as bloom and glow calculations are computationally expensive. Keep the curved edge distortion enabled—it's typically lightweight and essential to the CRT aesthetic. Test each change individually to find the sweet spot where your system runs smoothly while maintaining the retro feel.

If performance remains poor, consider using the shader only in specific builds (like arcade rooms) rather than globally, allowing you to enjoy the effect where it matters most without constant performance strain.