Hello Bro....
I hade the same Problem....

Right Klick GTA5.exe

GTA5.exe/Properties/Compatibility Hackers disabled for full screen optimization

Great to hear bro...

Hy my friend...!!!

Increase RollCenter

<fRollCentreHeightFront value= plus 0.05
<fRollCentreHeightRear value= plus 0.05

@a63nt-5m1th said in How to change headlight direction (for RHD cars)?:

<mirrorTexture value="false" />

<mirrorTexture value="false" />

change to

<mirrorTexture value="true" />

this will be change (mirror) the graphic headlight texture in game

@JohnFromGWN

commandline.txt file in Main Folder
-scofflineonly

GTA5 starts everytime offline into Story Mode

i leave it on 1.0 enertia for Cars
But when you like it increase enertia do it
it works for every car, addon or stock....

and take a look on this
vecInertiaMultiplier
EXAMPLE
if you set x="2.000000" it feels like controller damping for left and
right turns

if you set y="2.000000" it feels like the car is longer

if you set z="2.500000" it feels the car get more high
(when the car spin out, feels more realistic)

@OGKnowledge

<fInitialDragCoeff value="5.00000" />
First set this between 4.00000 and 7.000000

<fInitialDriveForce value="0.380000" />
second set this between 0.350000 and 0.450000

<fInitialDriveMaxFlatVel value="245.000000" />
third set this between 200. and 250

<fClutchChangeRateScaleUpShift value="4.500000" /> <fClutchChangeRateScaleDownShift value="4.500000" />
and this set between 1.8 and 4.5
1.8 is like manual shifting
4.5 is double clutch gearbox
dont set it to 7 or 8 it make accel to much

fInitialDragCoeff
but this is very important, if you leave it on 10.00000
the car doesnt reach never 300kmh

Hy..!! what car? Addon or stock

Hy!
Maybe y have Enable "leave engine running" in trainer