That looks like the scanlines you get on a 20” BVM or a 31kHz monitor with the interlacing shader. I’m into it, but it’s even more of a brightness killer than my xVM preset.
Would you mind posting some 240p Test Suite shots? Curious to see what the dynamic range is like with your preset. I think I’ve made the lines as thick as possible in my xVM preset while maintaining good DR but maybe there’s something I’m missing.
I think guest-dr-venom has better sharpness controls than Royale, it’s the main reason why I prefer it. Royale always seems either too sharp or too blurry and can have ringing artifacts depending on the settings and content. Maybe I just haven’t tried hard enough.