AMD Relive drop fps and unstable gpu usage

when I enable the instant replay or alt + z squeeze I see that the use of gpu is never 100% and the gpu clock is not maxed out, consequently fps has dropped by more than half, this happens in every game.

So, if I do not press alt + z or turn off instant replay, gpu clock and usage are normal and fps goes up to the normal rate.

 

Tested in Euro Truck Simulator 2:

Euro Truck Simulator2 2017 09 07 at 22 16 26 - YouTube

Euro Truck Simulator2 2017 09 07 at 22 12 59 - YouTube