I am having the same problem i have been trying to adjust this for months now and its not working;
Firestorm 6.3.2 (58052) Sep 27 2019 22:41:52 (64bit) (Firestorm-Releasex64) with Havok support
Release Notes
You are at 133.4, 135.6, 14.6 in Dust Bunny located at sim10381.agni.lindenlab.com (216.82.51.31:13005)
SLURL: http://maps.secondlife.com/secondlife/Dust Bunny/133/136/15
(global coordinates 172,165.0, 322,696.0, 14.6)
Second Life Server 2019-11-01T18:02:37.532376
Release Notes
CPU: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz (1992 MHz)
Memory: 12123 MB
OS Version: Microsoft Windows 10 64-bit (Build 18362.418)
Graphics Card Vendor: Intel
Graphics Card: Intel(R) UHD Graphics 620
Windows Graphics Driver Version: 25.20.100.6446
OpenGL Version: 4.2.0 - Build 25.20.100.6446
RestrainedLove API: (disabled)
libcurl Version: libcurl/7.54.1 OpenSSL/1.0.2l zlib/1.2.8 nghttp2/1.25.0
J2C Decoder Version: KDU v7.10.7
Audio Driver Version: FMOD Studio 2.00.03
Dullahan: 1.1.1320 / CEF: 3.3626.1895.g7001d56 / Chromium: 72.0.3626.121
LibVLC Version: 2.2.8
Voice Server Version: Vivox 4.9.0002.30313
Settings mode: Firestorm
Viewer Skin: StarLight (Original Orange)
Window size: 1920x1001 px
Font Used: Deja Vu (96 dpi)
Font Size Adjustment: 0 pt
UI Scaling: 1
Draw distance: 96 m
Bandwidth: 500 kbit/s
LOD factor: 2
Render quality: Medium-Low (2/7)
Advanced Lighting Model: No
Texture memory: 400 MB (1)
VFS (cache) creation time (UTC): 2019-10-4T2:30:20
Built with MSVC version 1800
Packets Lost: 0/22,968 (0.0%)
November 09 2019 12:04:58 SLT