I tried Citra and it sort of works but needs a lot of work to become worth using. How about the PSP?
Never had that issueI tried the standalone ppsspp and its good apart from seemingly annoying micro stutters and it doesn't matter what game you play. I've heard ppsspp is better when played under android on switch but I haven't tested that out .
Never had that issue
Most games don’t even have the slowdowns. Overclock the Switch, bump the native resolution up to 3x or 4x, set upscale level to ‘Auto’, and enjoy. There are a few that just aren’t playable though.I gave it a shot and it's not perfect but it is playable. There's a few frames of input lag in Castlevania: Dracula X Chronicles. It's good enough for a casual playthrough but I imagine some of the bosses will be harder. The games don't look great on the Switch OLED display but you don't play PSP games for their graphics in 2023.
I haven't done any side-by-side comparisons but retro games probably look better on the Switch Lite because the smaller screen helps mask visual defects.