LAG after the patch 9.10

i started getting lag in game after the lest patch .. i tried all the solutions possible i contacted the ISP they told me everything is fine ... i tried the hextech repair .. the lag stil remains .. im in 90 ms and when im about to fight it goes up to 200 -400 ms !! any helps would be greatly appreciated im sick of this :/ :/
Report as:
Offensive Spam Harassment Incorrect Board