А вот уже официальна информиця об оптимизации. Тоже полезная, я вам должен сказать.
he following information has been found to help some sluggish gameplay on
most computers
----------------------------------------------------
Make sure your system exceeds all not just most of the recommended
requirements.
If you have an Intel Celeron or an AMD Duron you will not see high end
framerates. Due to the reduced cache on those processors you will have some
sluggish framerates in game.
For Better Game Performance:
VIDEO
Turn down 'DRAW DISTANCE'
Turn off 'TRAILS'
Turn on 'FRAME LIMITER'
Lower selected 'RESOLUTION'
AUDIO
Turn off 'DYNAMIC ACOUSTIC MODELLING'
Use 'MSS FAST 2D' or 'DIRECT SOUND HARDWARE' or 'DIRECT SOUND SOFTWARE'
Sound Providers.
DEFRAGMENT game after it has been run once.
Turn off in the video card drivers 'ANTI-ALIASING'
Shutdown all background applications (inside Win9X close everything except
'Explorer' and 'Systray' (I recommend the program 'End It All' for Win9X
use); inside Windows2000 and XP close everything except 'Explorer'
Make sure you are using the latest motherboard / chipset / IDE / AGP drivers
appropriate to your system
Make sure all your Hard disks and CD drives have DMA mode enabled
Use the latest graphic card drivers
Use the latest sound card drivers
Any usb mice force feedback or usb intellimouse will produce sluggish game
play. Use a non USB mouse to help increase frame rate in the game.
Integrated Ramdac or No Ramdac listed video cards tend to run slower on XP
then Internal Ramdac video cards. (Still Researching this)
Background programs running during gameplay (You should have at least 85%
system resources free).
Set desktop display to 800 x 600 or 1024 x 768 & 16 Bit high color mode. (Do
not use 24 or 32 true color mode in Windows XP, game play will be choppy)
Add more memory, use a fixed swap file, make sure the hard disk that the
game is played from is on a different IDE channel to the CD drive that the
games audio disc is played from.
A video card that is not listed in the readme file (in the game directory)
as a fully complaint card, the game will run sluggish. (IE: all voodoo 3, 4
& 5 video cards do not official support DirectX 8.1 which the game
requires).
XP users must have the (Q306676) MS Patch installed. Download it from
here...
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q306676 Using old, beta or 3rd party drivers instead of official drivers for your
cards will cause sluggish game play.
Monitor set should be set to plug & play. (If your monitor is listed as
default, standard or unknown, they will have slow refresh rates).
Remove any joysticks or gamepads that are connected to the computer that you
are not using in GTA 3.
Scan disk & Defrag your hard drive before you install GTA 3 PC. When GTA3 is
run for the first time, a 'Texture Dictionary' is created that is
appropriate to your video card. This file can be between 100 to 300
megabytes in size. Performance is helped by this file being non-fragmented,
so if you are going to defragment your hard drive to help GTA3 performance,
then it is suggested to do this after running GTA3 at least once so the
'Texture Dictionary' can be defragmented also.
Sound Provider:
The sound API selected inside Grand Theft Auto III options can effect game
performance - try alternative sound providers to achieve better results. Try
Software, MSS Fast, RSX, Direct Sound Hardware, Direct Sound Software.
Screen Resolution:
Selecting lower Screen Resolutions in Grand Theft Auto III display setup
will allow faster gameplay on lower end machines. Also using 16 bit color,
instead of 32 bit color, will help in these circumstances.
Please note: That the use of any cheat codes, 3rd party mods, editors, no-cd
patches or trainers are not supported by tech support and can effect the way
the game plays normally. You should uninstall any of these 3rd party
programs and reinstall the game. If you saved a game with any of these mods
installed they will need to be deleted as well.
We have noticed that If you copy over the whole audio folder on the play cd
over the GTA III audio game folder that the studdering of the game stops and
plays more smoothly. But the file size of the folder is around 635 megs so
if you have the drive space you can try this.