I've been trying to perfect my PS2 setup for years now, but there's been one modern upscaler symptom haunting my favorite 2000s outings. While Sony's iconic sequel system looks perfectly fine on an old CRT TV, most of the console's releases rely on interlaced graphics that don't play nice with new screens. The result is jittery visuals that just look plain weird compared to 20 years ago, and solutions used to be far too pricey.
For a while now, I've had an OSSC at the heart of my retro console setup. FYI, that stands for Open Source Scan Converter, and I fully believe it's one of the top upscalers out there that comes with minimal caveats, and that's in part because it's a "line doubler" that multiplies horizontal pixel rows to ramp up resolutions.