Few post installation detail (opencore picker, multimonitor, etc)

[acasas]

hello!

I was able to install Catalina and everything seems to be okay except by a few details:

• Opencore menu picker is slow/laggy: when i see the opencore or opencanopy picker and i press any arrow key to change option it takes 5 seconds to move from one option to another. I tried with different drivers and options for UFI > Input, right now I'm using the PS2Keyboard.efi driver (my keyboard is not a ps2 keyboard but other drivers didn't work)
• I have 3 displays, when i have 2 of them connected everything work smoothly but when i connect the 3rd one i only see a black screen in that display and the systems becomes laggy, the other 2 displays seems to drop frames and some animations are laggy, slow or had strange behaviors
• Memory is reported as 800mhz (half of real)
• Hibernate is not working (i can live with this, your solution is welcome if you have one)

My hardware:

• Asus crosshair v fomula mother board
• AMD FX-8120 cpu
• Gigabyte RX 580 gpu

Thanks a lot