I am running an Intel I5 proc on a Microsoft Surface Pro.
First gen Surface Pro or Surface Pro 4? You know there's a huge difference in specs between the models, right? When people say "what's your system specs" they normally want full details, not vaguery, lol.
In any case, try dropping your framerate or resolution, or running on more powerful PC hardware for a smoother emulation experience, or keep on tinkering with the settings. Good luck!