Question with pokemon games yellow red etc etc

Good gentlemen, I have noticed that the Pokémon Yellow games in particular do not go so smoothly but rather in fits and starts, the same thing happens with other games, but Pokémon Crystal does go a little better.

I have tried it with all the cores in retroarch and it is always the same

Are those games going bad???

Tested on 2 simple computers but I think it’s enough for it to run well.

ryzen 5600x gt1030

i3 12100 rx550

this in both linux and win

some help ???