I made the experience that the longer a match lasts the less fluently the game runs. Is there anyone else with this problem? And what's even more important: Is there a solution?
Decreasing the detail-level doesn't fix it. I don't think that it is a hardware issue anyway, because at the beginning of a match it's all fine. Furthermore my hardware should be more than sufficient for the game (6 GB RAM, Intel Core i5 CPU, Nividia 250 GTS grafic-card). Operating system is win7 64 bit.