Modern combat lag t428, GM282 no lag

[hup333]

I play modern combat 4 on my mini android pc
But i lag on
Tronsmart T428 Quad Core Mini PC Android 4.2 Rockchip RK3188 2G DDR3 Wifi/BT TV BOX

http://www.smalllinks.com/198F



Have tested on
GM282 Dual External WiFi Antenna Quad Core Google Android 4.2 RK3188 1.6GHz Mini TV BOX Dongle HDMI HDD Player 2G/8G BT White

http://www.smalllinks.com/198G



And works fine no lag (Buy as a gift)


Have some any idea why?
Is faster 1.8 vs 1.6 quad core, bouth is A9


Also faster benchmark