yup running retropie over sd card using samsung evo 32gb class 10 micro sd. My iso’s are on a hard disk.
I don’t know really maybe i’m looking to hard at the fps but fully playable should be running smoothly at 60/60 fps withouth frameskip well that’s fullspeed at least. Pi3 can’t handle that (probably can for certain 2d games) Even frameskip 1-3 is not showing 100% speed in fps counter i can see the percentage going down quite a lot.
So i’m not certain what the problem might be either i’m too focused on the fps counter or others are not ? Later today i’m going to test a few other / older games and see how they perform