I tested with Final Cut and BruceX 5k test and the results are 5/6 seconds to complete the task!!! Super fast I am so happy right now... and I always tested Premiere exporting 12K Apple Pro Res 422HQ, and it tooked like 14/15 minutes. With the last update just 8 minutes, the half... it is not the same performance like in Windows (it took 5/6 minutes) but it is so close... About Geekbench I think it is a bug with Geekbench because I still have a lower score but all my software (Games, ProApps, 3D Apps) are working so nice and perfect, I had a Vega64 and the performance outperform a lot that VGA, It remains me when Geekbench could not tested OpenCL with nvidia cards, and at the end with a Geekbench update they solved that... maybe is the same scenario with the Radeon VII, because at this point the card works just perfect for me... and because an image is more important than millon words.. I am sharing a video showing that my test with BruceX 5K test...
Update Clover to v2.4k_r4961.
Update Lilu v1.3.7, WhateverGreen v1.3.0 and AppleALC v.1.3.9 from Clover Configurator 220.127.116.11 in the Kext Tab (Remember its install on 10.6 Folder, Copy those Kexts to 10.14 Folder!)
Run the System Update.
Remember to boot from te "MacOs Mojave Install" Partition until its Desapears (All times your Machine needs, 2, 3 o 4 Times).