Do you tried to reinstall DirectX from full package?
D3D9 Overlay: Not Supported DXVA-HD: Not Supported DDraw Status: Enabled D3D Status: Enabled AGP Status: Enabled
D3D9 Overlay: Supported DXVA-HD: Supported DDraw Status: Enabled D3D Status: Enabled AGP Status: Enabled
Use ProcessExplorer to find out what eating CPU time, maybe it's AMD driver library. If it's AMD driver problem uninstall driver in safe mode using usually uninstaller, reboot in safe mode again when use Display Driver Uninstaller to remove remains. Another way - prepare older version of driver 18.3.2 for example, reinstall windows 10 1709/1803 from DVD drive, don't turn on internet connection during installation and install driver in offline mode.