after Sequioa my Mac Pro 2013 laggy

I used a usbe OpenCore created for a Mac Pro 2013 D500 12 core 128GB unit.

Then i used the same USB for a Mac Pro 2013 D700 12 core 128GB unit.

Can it be that the difference with the GPU causes laggy behaviour?

Can it be fixed or a total redreation and reinstall of the OS specifically to the D700 is required?

Author: @dotasolosafi