For my video I just went fullscreen and then started recording... it seems to record at your current resolution (if GPU recording is enabled).

There is an option to "load configuration" and you can create a config file that includes specifying resolution using the instructions here (though I never tested it):

https://docs.libretro.com/guides/rec...-coding-config

Oh gotcha, thanks! At least it looks crisper, just looks like there's TOO many pixels now :P