I made another Reshade Preset and added specular lighting to it , Note that Reshade isn't perfect because it lacks a lot of data such as:
.Material data (to determine how shiny each surface should be)
.Smoothing groups to smooth normals accurately without guessing using an algorithm
.World space data to have a light to have the light come from one direction in world space
So for now , this is just to show the potential of how shaders can change the mood of the game. I'm using Gta Re LCS so we might be able to actually make native shaders for the game instead of just post processing effects.