For those who want a little more fps in the 2019 mod or any other mod this worked for me. I'd remembered this tweak from something that I'd read in a forum a long time ago. It gave me about 15 more fps.
Go into your Players folder which is in your main NR2003 folder. Click on Player. ini. Under Graphic Options find Enable_CarMegaShader. Change it from 0 to1. Find Enable_ ShadowVolumes (It should be right underneath CarMegaShader.) Change that from 0 to 1. Save the file. In your game's Graphics Option the Reflections On Cars will be grayed out but you will still have shine and reflections and about 15 more fps. I also lightened up the shiny mip for the 2019 mod to give the cars more shine.
Go into your Players folder which is in your main NR2003 folder. Click on Player. ini. Under Graphic Options find Enable_CarMegaShader. Change it from 0 to1. Find Enable_ ShadowVolumes (It should be right underneath CarMegaShader.) Change that from 0 to 1. Save the file. In your game's Graphics Option the Reflections On Cars will be grayed out but you will still have shine and reflections and about 15 more fps. I also lightened up the shiny mip for the 2019 mod to give the cars more shine.