At the beginning in the loadout/map screen, or in general?
If in general, then that is weird. I have a weaker system than yours and it runs just fine on my system.
Hi i'm a PPU user and i was very intrigued by this mod, if it was really possible to run the same PPU effects and not have performance problems i would really like to know, but after seeing the video above i realized that it is not the same, the first thing that i saw was the lack of any wind effects, the palm trees stay static only moving when shoot, with the PPU they all bend and the leafs move with the wind i also did not saw any leafs flying in the wind as with the PPU , the strange behaviour of the palm tree leafs when the tree is cut shows some problem with the physics, the explosions lack the effects of the PPU contra part, like more peace's/shrapnel and they staying on the floor, on the video they did not, even if it seams not much it is in did a big diference. So from the time being the PPU is the clear winner here.
If you will be able to make everything work, only time will tell, and i really would like you to do that because in that way AGEIA would start to open it all to everyone even if the performance would not be the same.
These effects are working. I've seen the wind,the bending trees and the leafs. Every effect is in there . As Jonelo said, if you restart the mission everything is fine (regarding my 5 fps)