not starting

[anmol21]

I just downloaded the apk for Game Launcher and game tools from APK mirror they are installing but they are not running on my a 20s which is running on one UI 2 core what should I do now 

they are getting installed but whenever I try to open them they show game launcher has stopped

 is there any software which I should also install when game optimising service is there in my phone then why Game Launcher is not working 

[RitikTech]

Bro don't isntall any apk from Google because it will effect our phone performance.

[Anikroyale]

Not necessarily the case.

[AnmolSidhu]

Try installing from Sammobile 😁

[bhola69]

install game booster and maybe it's its work

[SaMbIt015]

No need to install from any website bruda