Unsolveable GPU Usage Issue

[yawnland]

SYSTEM

• 
  ■ AMD (Ryzen 5 2600X)
  ■ MSI (GTX 1060 3GB)
  ■ Kingston (HyperX Predator, 2 x 8GB, DDR4, 3000MHz, C15)
  ■ Kingston (A1000, 240GB, PCIe SSD)
  ■ Cooler Master (MasterWatt, 650W, 80+ Bronze, Semi-Fanless, Semi-Modular)
  ■ GIGABYTE (B450M-DS3H) NOTE: I choose this one because no other was available in my region.
  ■ BenQ (XL2411P, 144Hz, 1ms, 1920x1080)

POINTS OF INTEREST (may forgot some)

• 
  ■ I have every frame rate limiting feature disabled (V-Sync, manual limits and so on).
  ■ BIOS settings are appropriate adjusted, CPU is boosting up to 4.25GHz on two or less cores when the adequate load is presented, I doubt CPU bottleneck.
  ■ I mostly play Fornite & GTA V Online which I believe are fairly optimized as this issue does not occur on other identical systems running those games.
  ■ I have the all the latest drivers manually installed.
  ■ Temperatures, clock speeds, power draws, etc of all relevant computer components are completely normal.
  ■ I monitor the above mentioned values using MSI AfterBurner and HWiNFO64.

I have tried everything. Persistent usage drops vary between 50 and 70 percent during regular gameplay when in fact it should be reaching near the 90+ usage mark like any other identical system is.

Please help.

 

[dederedmi5plus]

use faster internet service provider

 

[yawnland]

use faster internet service provider

 

[smorizio]

make sure your new amd mb has the newest bios file on it.

 

[yawnland]

make sure your new amd mb has the newest bios file on it.

The motherboard arrived with version F1, which is the latest.

 

[dederedmi5plus]

some1 from rockstar games should answer your post, why their scripts don't load 100% 3D world, or better, ask them to give connected players their desired frames per second. So we could have time