Very slow game speed Options

[Shadan]

I am planning to play an another BG2 run while we are wating for v6 release, but I have one serious problem. In all of my BG2 games (was 3 of them with IA) I experienced a very slow game speed in certain situations.
1. When there were lot of enemies and/or corpses on the screen (like githayanki suprem leader fight).
2. When there were many spellanimation on the screen (like SI, Mirror Image, GoI, Spell Turning etc.).
3. When I fought against big monsters (like any dragon).

It was very frustrating sometimes. First I thought it is because I have some mods (like bottomless Bag of Holding), but later I had only IA and The Four installed after ToB patch, Baldurash and EoU, and I dind't have bottomless Bag of Holding at this time. Despite this clean and modfree IA install, I had very slow battles still. My computer is not the newest, but I have 2 giga memory and I can play all games, even WoW without any difficulty. Can anyone give some advices how can I avoid this slow speed in BG2?
Ah, I played in 1024*768 resolution, but I tried in 800*600 also to check if this could be a problem.

[matti]

It seems to me that your graphic card is the problem here; or cpu but I suspected graphic card. BG 2 runs flawlessly on my machine with graphic acceleration ON, only vertex pading is disabled, eventually check if vertex pading is disabled in your BG2 configuration menu and disable it. Try to disable all graphical options like static animations, spell effects, VEF Vid cells, disable animations during fights, etc. Lower your resolution also to 800x600.

Another possibilities:
- if you have soundblaster audio card try updating drivers, there was issues when soundblaster causes serious slowdowns in the game
- if your cpu is dual core set the game to use both cores