Your input has helped me in a few issues I had figuring out this bug, now I have to correct a few thing I said in my last post. I also thought the issue had to do with the GFX since the beginning, but a lot of results in testing make me doubt and point the cause elsewhere.
First I have to start showing my video settings:
other settings not seen there are:
HDR BLOOM: ON
HDR RAYS: ON
UI FX: OFF
My GFX card is an Nvidia GTX 460 1GB
CPU: AMD Phenom II 980, quad core @3.7Ghz
RAM: 4GB DDR3 1600 cl 7
Ok, now I have to correct that the issue shows up clearly with each of the races loaded, so a 4 players map is the only thing needed the only thing is that it accentuates a lot when I have the Taiidan along with both HW2 races on the map, I the beginning it lead me thought that it was a Taiidan related issue, now I’m pretty sure that it is the same issue that roloway mentioned except that it happens right from the sart of the match, because lowering the texture size to 512 and the quality to 0 helped to avoid making the game drop to less than 15 fps in a modded version of the game and kept the vanilla game over 40fps, but the funny issue is that it didn’t make the game faster when I expected it to be, with these new setting the game kept around 60 to 75 fps in almost every case even in cases where I normally achieved 160fps and the worst thing is that the game didn’t feel as smooth and responsive which is very odd.
I tested the same issue in another PC with a similar CPU at 3.6Ghz, 8GB ram and a 560 ti and the same thing happened.
In a modified version of the game where I have enabled other races like Kadesh, Turanic Raiders, Bentusi, and Keepers, I load them including the vanilla races excepting the Taiidan in an 8 players map and the game runs over 60 fps at the beginning of the match, but if I include or switch any of the races with Taiidan the game drops to almost 0 fps.
For the moment I will ignore the issue, keep my old settings, since the game runs fine over 75 fps if I exclude the Taiidans from the matches.