A Little update,
I’ve been testing a bit more and it seems that the noise has gotten better for some reason. I don’t know what it was, I haven’t changed anything in the setup.
Now it’s just the flickering that I believe is my TV’s fault and the darker image on the RetroTINK. I think I’ll both get an mClassic or an mCable for upscaling and I’ll probably RGB mod my N64.
Until then I think I’ll keep using the Generic Converter until I have those things done.