https://www.moddb.com/games/crysis/do...
This patch solves a strange performance problem of Ascension level that has been troubling people since the launch of Crysis. The biggest performance hit is caused by a large amount of tornado-related particles that are processed at very long distances, even though they are completely invisible behind the mountains. I significantly reduced those draw distances and also removed some unnecessary particles that didn't make a noticeable visual difference. And optimization of some other particles.