>>712952798PS1 games didn't see a significant performance increase on PS2. Load time increases were BARELY noticeable and resolutions and framerates were completely unaffected. Picture quality was essentially the exact same. Same with PS2 on PS3. PS2 load times weren't even better on PS3, from what I remember.
The Switch 2 has massive affects, that make completely unplayable games run flawlessly. Major framerate issues in games like Pokรฉmon Scarlet/Violet are gone completely.
The performance of many games has more than DOUBLED and image quality overall is improved in most games.
It's so much better compared to what I've seen in the past from backwards compatible consoles.