Question [Q] GIGABYTE Gsmart RIO R1 update help

Hello i bought Gigabyte gsmart rio r1 it work on Android 4.0.4 please create for him new android kitkat rom or write me where i can download new android 4.2 or 4.3 because factory installed rom work very slowly and have many bag gigabyte corporation say this phone will not updated.
Thanks for your attention