I would be up for testing this new esp for the waterfront. I get really low FPS compared to other places with my setup, but I would let you know that the FPS is at 25 (due to OSR's setting). But the stuttering is very very palpable in the waterfront.
I know that it is unfair to expect 40 fps everywhere, and I have my expectations in place. But I built this new rig with the latest and greatest just to play modded Oblivion, and if it stutters, I don't know who can play without stuttering. FYI: I am using NVidia GT480 with latest drivers, and the user above mentioned ATI - maybe that is the issue? FWIW, I think 15 FPS is a slideshow - so not really practical...if I can get 30 fps, I would be satisfied. Maybe making the inner slum a childspace can be considered if that helps?
Also, another issue to report for the new waterfront:
One Nirnroot near elven ship, added by latest BBC, is harvestable repeatedly. Also, it does not get removed (physically) once harvested, like vanilla nirnroots are...
That'll be because that nirnroot is parented to another object so that it can be toggled off when using the compatibility patch for Skyrim Nords. I'll have to remove the parenting and relocate the nirnroot in BC so that it doesn't need patching.
15fps is most certainly not a slideshow. 12fps is the beginnings of one, but 15fps is still playable. Anyway, thanks for offering to assist, now that I know someone is willing to help with some testings, I'm willing to investigate possible solutions. Sometime later this week I will create a couple of ESPs for you to use. These ESPs will NOT be meant for proper gameplay, purely for experimenting with, so you won't want to save your game when they're active.
Sorry if this has been answered before:
Is it normal that BAIN wizard installs IC Green Emperor Way.esp even for a Merged setup?
Thanks and props for the amazing work

Please don't cross-post the same issue both here and on the Nexus comments thread. Pick one location, and stick with it. Otherwise we might get confused! BAIN is an Ismelda thing, she'll have to answer to all BAIN queries.