By Fenrir.Velner 2020-11-02 18:44:36
Update for anybody else with this issue:
1) /localsettings blureffect off was a huge help and made the instance playable with one character. Two characters was still choppy. Three resulted in still being unable to respond to Dark Thorn and Fatal Allure.
2) I also changed the .DAT file for the Dark Gyves into Runic Lamps. The Runic Lamp .DAT file is located in Rom4/1/107.DAT. The Dark Gyve .DAT file is Rom/259/80.DAT. The only issue is that when she spawns one, only the name will appear and not the model therefore I fought her with my camera at the highest angle to see when a gyve was spawned.
3) I did try DGVoodoo but I probably messed up the settings because, ultimately, it resulted in much lower performance despite taking quite a bit of the load off my CPU.
I've managed 5/5, 4/5, and 3/5 pieces on my characters in 379 fights like this. It's not ideal having to hold the camera angle up while also prepping to turn around and cycling macros but it does work. I just hope it's not 379 more fights before I have those other pieces. Thanks everybody for the input!