I would argue about gc and psp, but that's subjective. I've completed a bunch of games using dolphin, like Crash Tag Team Racing, Simpsons Hit n Run, Prince of Persia 1 and Warrior within, Mario Strikers...and i have a bunch of great playable stuff to complete as well. It all comes down to decreasing emulated CPU speed and playing at full speed 30fps instead of native 60 (doesn't work the same for all games tho). For me its more than enough to play gc on switch. But other than that, yeah, you said it all. I mostly play psx and dc in lakka too and the experience is great, except for that psx pulse audio problems with certain games.