I've been noticing that the frame rate drops whenever cum goes past or behind the head and body (like this:
http://31.media.tumblr.com/793cb8d2e3fb17c67127e6cd11a3498d/tumblr_mx3wc77atq1sphjzpo2_r1_1280.png).
I also tried this in vanilla SDT with the standalone flash player, and it still happens to me there, too. As far as I can tell it doesn't seem to be mod-related. Cumming on the face tends to dip down only to 20fps. I clear the cum and reposition, but for some reason cumming behind her instead of on her drops down to 10-14fps.
Has anyone else found a way to improve performance when this happens (it's less likely but sometimes cum does go over the shoulder rather than onto the face or chest)? I'd prefer not to compromise quality (such as disabling strand shader) just to keep the framerate up.
I did see someone suggest that 10x players were better than 11x, but the improvement for me was insignificant.