Some spots have really severe slowdowns now, first was Sahuagin city, got really choppy when I had summons then in the Illithid lair, when the Githyankies provoked the Illithids so I can open the door, frame rates became pretty bad almost 5-10fps. It was like a slideshow.
Anyway I am currently at Ust Natha, did the quest to save the girl then went to the Beholder lair, cleared it and Illithids after, was kinda worried I'll be late for the time limit. Hive Mother was a little hard to deal with but not much overall, she mazed my PC, I kinda thought that was a game over but he got back seconds later, no problem which was good, overall easier than I thought it will be. Illithid tho was kinda hard, they kept teleporting and surrounding my PC or teleporting to my other party members in other side of the dungeon and Skeleton Warriors were kinda not that useful, even Gate was not that usful. took the place step by step then I just buffed my PC and used Hardness and he pretty much killed everything in the boss room.
I also grinded exp from all the scrolls I had, I used all the scrolls of Lv3+ and grinded for exp and manged to level and finally got HLA, PC got Whirlwind and Hardness, Jahiera Diva and Elmental, Voconia Fallen Diva. I am liking Hardness very much. Imoen is still very far from being useful. Edwin been doing really great, he managed to clear the mage duels in the Drow tavern with almost no problem and beside the Elmentals in Underdark he cleared the whole place by himself.
I think there is a Lich in Ust Natha, if I mange to beat him with little trouble then hopefully it means I am ready to beat the Dragons and Liches in Athkatla.
I tried to do a new installation thru BWP to maybe it might have fixed the slowdowns but game crashed when I loaded save, I used the same mods currently installed, tried to make another folder of the game with different set of mods but did not work, I get error at start up.
Edit2:
Killed Thax in 10-15 seconds, felt good. Firkraag took a little more work, hit like a truck and almost killed my entire party, I think only thing left is the Liches and the Hidden Rune or something place.
The Githyankies fight in the Dock also caused a slowdown, framerates took a dive. Not a lot of spells were used in that fight so I have no idea what the problem is, the Docks were lag free before. I hope the fight with Irenicus doesn't cause too much slowdowns.
Edit3:
Killed all Liches and finished the Twisted Rune including Kangaxx, only thing left is Planar Sphere and the extra areas that opened in Ch6. After that I think only Main quest left unless I might give Watcher's Keep a try to completely finish.
Edit4:
Yea, I think I am done.
Currently doing Planar Sphere, which was going pretty well but at the fight with the Cowled Wizards, framerates went down to probably 5 or maybe less. Became worse than a slideshow, pretty much unplayable.