iPhone 5s Config Suggestions

[lerisbo1192]

can someone tell me how this guy ( http://www.youtube.com/watch?v=zWBX9kA83i8 ) obtained that much fps while i'm struggling with an ipad air? using the last stable version (repo angelxwind) and i'm playing with the psp resolution ( the lowest). i also tweaked a lot the settings and after sometimes its decent but with too much lost in quality ( characters barely visible) and even then its sometimes very laggy or skipping too much frames!!