2990wx Threadripper and 5700XT, can anyone help?

So I've been having issues with the 5700 and stutter and other things, and basically bad performance. I've tried all of the various "fixes" and mine won't even boot without a black screen and I have to have WEG even though supposedly the stock OS supports it and I have 10.15.7

My system is about 6 months old on updates, so figured that was the issue and I tried to update mine to the newest Opencore, but I never have understood patches and I borked my system.

Is there anyone who can take a look at my last working EFI and see if they can bring it up to current Opencore?

Thanks!