I'm recently Play asphalt 8 airborne but iam faced some lags so I will find the perfect solution try this 100 %.working.                                                

step 1  ;     
              download GL TOOL      

STEP 2;
            
             ROOT your device

STEP 3;

             install and open the software

STEP 4;

             click the enable custom setting for the square box

STEP 5 ;

             many settings has been shown but you are select fake gpu and select nividia shield 4

finish play and enjoy


any doubt comment her finally you have played smoothly