it seems from a fresh start opensimulator 0.9.3.1 Nessie feels realy solid.
right now i am using the grid with only 1x1 regions and fully build to use ubode physics only..
it seems al the old mesh from my 0.8.x.x days was creating series lag and render issues on mesh and textures. and did not go well with the new viewers
and maybe servers i am not sure.
it seems the script engine now is much more responsive 0 script lag and inputs on menus are inkstand response same with keystrokes from viewer to server. from viewers as in jumping walking and key-binds to gestures really smooth this was in my older server still realy time delays but now its instant response
i do like the 0.9.3.x server side experience lot in how it works on my experience so far.

-Viewer side rambeling-
the new viewers defnly need tweaking theirs some issues with them. odd leaks after background idling and it defnly needs a proper FPS limit that can detect proper limitations on different hardware and crashes ons selecting to much items at 1ns. media plugin is crap/half broken at the momend. no more key support on full keybord layouds and lots of stuff is not working no more for some reasen in the mirrord browser tingy.

i do still think viewers and servers need a option to switch between wind light and EEP. and the viewer need to have a option to turn of PBR becose this is a mistake in my eyes im not a fan. its not worth to kill performances for visual crap if u ask me this is a nice option for Flicker newbies and fake life bloggers.. but to me this is a bad choice. its better to lock this crap (EEP/PBR) behind a photo mode not a always on experience..

no i am not a fan of the choices that are made lately by viewers and secondlife..