NWN performance issue.

i installed Diamond version of original NeverWinter Nights patched them to the latest it runs great indoors but when i get outside in open its performence slows down where i get under 20 FPS in certain scenes especially with lots of detail or when i zoom out a little bit etc. assuming this game is quite old it should rum much faster.my rig is Core2Duo E6750 stock,Geforce GT 240,2gig ram,DG31PR board.i play on 720p with all max 4xmsaa aswell but i turn that off it helps abit but still not enough.is my rig not powerfull enough for this game which about 10 years old.

NWN engine isnt the best, try turning off the AA. 04dcarraher

That should increase the framerate, also keep in mind that your computer is horrid for gaming at 720p, so even though the game is old, so is your pc.