Stuck at 3 FPS on startup and stays persistent

@Crow04111 post a dxdiag please !
Nad do those checks and test in advance and update us please:

First update youre system drivers.
Try this:
SYSTEM DRIVERS AND CHIPSET UPDATE

Check the Youtube movie how to install , download and update ALL drivers.
https://youtu.be/6UpzenfVOAA
Open the web browser and enter url: https:\\www.drivereasy.com
Click at Driver Update Tool in the upper bar and select Download Free Version.
Click at the green button with the text DOWNLOAD DRIVER EASY NOW.
When tool is downloaded select the file and run.
Install Driver Easy Tool.

Some drivers updates need to reboot your system, reboot system when needed,
continue using Driver Easy untill 'ALL' drivers are updated.
This free version allows only 1 download and 1 update at once.
Reboot your system

Now lets do a windows healty check also:
SFC - Windows Health Check

Press Windows key + 'R' ,typ CMD
Press and hold down CTRL + SHIFT and press ENTER.
When User Account Control shows up, click Yes.
Use the following command lines, pressing Enter after each
(make sure you wait till each of the commands is executed properly):

sfc /scannow
DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth
Reboot your system

Now to make sure any other software/program is causing any issues with bf2042,
you need to do a real cleanboot:
Cleanboot / Msconfig

reboot pc by a clean boot:
https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-...
Hide all Microsoft services, DISABLE (uncheck) ALL other processes, apps and services !

Cleanboot is just a one time clean boot ! Next reboot all will be reset and a normal boot will be occure.
Use msconfig to disable apps permanent each for new reboot.
DISABLE ALL other processes, apps and services from booting with windows, check instructions below:
Use the keyboard shortcut “Windows Key + R” and the “Run” window will open.
In the text box, typ MSCONFIG and press Enter or OK and the MsConfig window will open".
Select the tab STARTUP (select OPEN TASK MANAGER), and disable apps/programs by right click at them!
Those disabled apps will no longer boot with Windows , till ya set them enabled again !

Now test game and update us please !
Cheers

@Crow04111 What happens if you use only one monitor on the RX570 card

Good to hear! @Crow04111

/Atic