Target FPS and grass

[stupor-mundi]

I'm trying to optimize my graphics settings to try and improve the situation in multiplayer with slow-motion effect.

Before I had Target FPS off, and am now trying with it on, since, when it's on, you get the choice of Dynamic resolution factor which is otherwise greyed out.

I set this to 0.6, with the lowest possible Target FPS of 30. The outcome regarding SloMo seems slightly better.

But there's a problem, I have Grass quality set to OFF, which means (or should mean) grass off (completely), and used to be so, with Target FPS off.

This translates to a setting in startup.cfg of

grass_distance = 0.00000

But now with Target FPS ON, for some reason there is a small patch (maybe 20m radius or so) of grass around the tank which looks like a patch of pubic hair really and is super irritating.

I checked my startup.cfg, and the grass_distance is still 0.

Does anyone know how to force NO grass when Target FPS is on?