Low FPS in League of Legends

Hello everybody, I have a big problem. My hardware accepts minimum system requirements, but still I have lag.. in other games I dont have this lag, it's like, now I have 80 fps, and during the game (in late like) max 50fps, when I play syndra and I ult it's like photos. Why? I have all graphics settings on very low, I have the ultimate nvidia driver, I have nvidia settings optimized.. what can I do? I play csgo with 60 fps constant. Sorry for my English..
Report as:
Offensive Spam Harassment Incorrect Board