Some of the modifed Poser hair that has been converted to the Sims goes about 10,000 faces, and THAT does drag the game down when you get 3 or 4 characters running around with those heads, but I haven't seen any problem with mine. Doing these figures has been an education for me, I never realized you could do so much with textures, either. Many of the Sims figures are truely remarkable!