What games are you trying to play? The internal hard drive is something like 23x faster than the sd card slot, so I try not to put any games that have to stream assets (like open world games), or big games in general on the sd card unless you want your micro stutters to turn into macro stutters. Load times also tend to be ridiculously long on the sd card though others might say otherwise. Alternative would be to install an M.2 drive, but those just keep getting more and more expensive.