For anyone who is experiencing huge lags when playing fifa 20 demo, beta or the full  release.. this is a working fix . This year ea didnt give options to choose dx11 or dx12 but seems dx12 is the default selection which causes lags on most PC's

Fix

1. Go to documents/fifa 20 folder

2. Open with notepad fifa setup text file

3.change directx_select from 0 to 1

4. Save changes n run 

Doing this gives you huge performance gains n smooth gameplay 

My setup 

RYZEN 2600X 16GB 2600MHZ  GTX 1080