Looking for Help Dell Latitude 5480! need a working EFI badly :(

Dear brothers,
I'm dying and suffering to make my Dell 5480 working with mac in anyway, i just need a working EFI... would do anything to get it working.. :)

let me know the best possible ways is someone can share it with me because i tried every possible EFI out of 5 I got one working with a lagging mouse cursor and no proper Graphics, No wifi :(. I have Monterey installed. I'm wondering if it has Graphics support. A help would be appreciated in anyway.

Please:)

Thanks in advance:)

god bless all.

thanks:)