Clover RadeonDeInit didn't work

Updated to 10.15.1 Public Beta 2 yesterday, boot to black-screen. Found out it was caused by Whatevergreen.kext.

So removed the Whatevergreen.kext fixed the issue.

but noticed dramatically GPU performance drop. Before I was getting 140k+ on Geekbench point on GPU OpenCL. Now I'm only getting 45k+ points.

From the Pined post, it says use RadeonDeInit instead, but it didn't help.

Here is my current GPU screen-shot:



Before:



Now:

One setup = geekbench 4
Second setup = geekbench 5

try using same geek bench for each setup.
Comparing numbers between different versions of geekbench isn’t reliable nor recommended.