Client lag

After this last update this game has become nearly unplayable, at most before this last update I had 40ms and an OCCASIONAL spike up to 150ms, but after this update I've been getting all game long spikes ranging from 230ms all the way up to over 2000ms, it's making this game impossible, there are times when I click and my champ literally just keeps walking endlessly until the lag decides to subside at which point I'm dead.