Ever since the new map came to live

I've had random cases of lag that last 2-3 seconds several times throughout the game. This never happened before. Every game would run smooth and fine with 50 ping as I live in CO. When this happens, I lose control of my player and every champ or minion on the screen continues to move in the direction they were moving before it happened and then all of a sudden it pops back into reality after 2-3 seconds and everything is in a different spot and I'm either dead or in a spot I didn't want to be. This is getting tiring. And it's not consistent or anything. Just completely random. I sent in a support ticket several weeks ago and have yet to get a response. Please fix this.